Beijing Choice Electronic Technology MD300W4 Pulse Oximeter User Manual

Beijing Choice Electronic Technology Co., Ltd. Pulse Oximeter

User Manual

Copyright Beijing Choice Electronic Technology Co., Ltd (hereinafter called Choice) owns the intellectual property rights to this product and this manual. This manual may refer to information protected by copyrights or patents and does not convey any license under the patent rights of Choice, nor the rights of others. Choice does not assume any liability arising out of any infringements of patents or other rights of third parties. Choice intends to maintain the contents of this manual as confidential information. Disclosure of the information in this manual in any manner whatsoever without the written permission of Choice is strictly forbidden. Release, amendment, reproduction, distribution, rent, adaption and translation of this manual in any manner whatsoever without the written permission of Choice is strictly forbidden. © Beijing Choice Electronic Technology Co., Ltd. All trademarks are the property of Beijing Choice Electronic Technology Co., Ltd. unless otherwise noted. Content of the manual is subject to change without prior notice. ALL RIGHTS RESERVED Ver1.0 Issue Date: April 10, 2011
MD300W4 PULSE OXIMETER Content 1. INTRODUCTION ............................................................................................................ 3 1.1 Brief Introduction.............................................................................................. 3 1.2 Safety Information ............................................................................................ 3 1.3 Intended Use ..................................................................................................... 6 1.4 Electromagnetism Interference ....................................................................... 6 1.5 Explanation of Symbols ................................................................................... 7 1.6 Product Features .............................................................................................. 8 2. GENERAL DESCRIPTION ............................................................................................. 9 2.1 Appearance ....................................................................................................... 9 2.2 Power Supply .................................................................................................. 10 3. TAKE A MEASUREMENT ............................................................................................ 12 3.1 Sensor Installation.......................................................................................... 12 3.2 Take a Measurement....................................................................................... 12 3.3 Factors That May Affect The Measurement.................................................. 13 3.4 Applying The Belt ........................................................................................... 15 4. SETTINGS.................................................................................................................... 16 4.1 Brightness Setting.......................................................................................... 16 4.2 Battery Setting ................................................................................................ 16 1
MD300W4 PULSE OXIMETER 4.3 Reading ID Setting.......................................................................................... 17 4.4 Version Information ........................................................................................ 17 4.5 Return .............................................................................................................. 17 5. MAINTENANCE AND CLEANING ............................................................................... 17 5.1 Equipment Maintenance................................................................................. 17 5.2 Battery Maintenance....................................................................................... 18 5.3 Preventive Maintenance................................................................................. 18 6. TROUBLESHOOTING ................................................................................................. 21 7. WARRANTY AND REPAIR .......................................................................................... 21 7.1 Service Method ............................................................................................... 21 7.2 Warranty Limitations ...................................................................................... 22 7.3 User Guarantee............................................................................................... 22 7.4 No-Warranty Principle .................................................................................... 23 7.5 Warranty Period .............................................................................................. 23 7.6 Repackage....................................................................................................... 23 7.7 Storage and Transportation ........................................................................... 24 APPENDIX SPECIFICATIONS......................................................................................... 24 2
MD300W4 PULSE OXIMETER 1. INTRODUCTION 1.1 Brief Introduction Thank you for purchasing the Pulse Oximeter. The main functions of the device are to measure Haemoglobin Saturation (SpO2) and Pulse Rate (PR) value of single patient and transmit data by GPRS or USB. Please read the instruction manual carefully before using the device. Note: The illustrations used in this manual may differ slightly from the actual product. 1.2 Safety Information Conception of Warning, Caution and Note The Warning, Caution and Note in this document are special information in favor of users’ operation. ★ Warning Indicate that maybe some potential hurt or damage to patients or device. ★ Caution Make user take a serious attitude toward the incorrect operation, which are likely to incur some life-threatening incidents. ★ Note Serve as a pivotal notice to avoid preventable incidents during application of this equipment. Warnings! 　 Before use, please read the manual directions, all precautions and specifications carefully. Our company will assume no warranty for using the device improperly. 　 The user must check that the device functions safely and ensure that it is in proper working 3
MD300W4 PULSE OXIMETER conditions. 　 Do not use the pulse oximeter in the presence of flammable anesthetics, vapors or liquids. 　 Do not use the pulse oximeter in an MRI or CT environment which is the source of some electric noise to influence the accuracy of the equipment and following measurement. 　 This equipment is intended only as an adjunct in patient assessment, and the measurement results only serve as a reference for any relevant treatment. 　 Prolonged use of the probe/sensor or the patient’s condition may require changing the sensor site periodically. Change the sensor site and check skin integrity, circulatory status, and correct alignment at least every 4 hours. Prolonged use may cause blisters, skin deterioration, and discomfort. 　 Connect the sensor correctly; please follow the directions for use of any accessories. 　 The sensor is a sensitive device so please strictly follow the sensor application instructions. 　 Use only the SpO2 sensors supplied by our company. Use of sensors not intended for the device may cause wrong alarm. 　 The malfunction of sensor may cause inaccurate measurement result. 　 The disposable accessories should not be cycled. 　 The device does not require periodic calibration and maintenance, except replacing batteries. 　 When connecting this equipment to other peripherals, make sure that you are qualified operator to operate this device. Any peripherals must be certified according to the protocol of IEC 950 and IEC 60601-1-2. Any input/output device should be following the protocol of IEC 60601-1-2. Cautions 　 This device is intended for use by persons trained in professional health care. The operator must be 4
MD300W4 PULSE OXIMETER thoroughly familiar with the information in the manual before using the device. 　 The surface of the device can be wiped with alcohol gently. The device is strictly forbided to contact with strong acid or alkali. 　 Unplug the sensor from the pulse oximeter before cleaning or disinfecting to prevent the sensor or pulse oximeter from being damaged, and also to protect the user under safety situation. 　 Clean the probe with an H2O solution and a neutral detergent. 　 Don’t submerge the device or probe into any liquid. Do not use the device in autoclave (sterilizer). 　 The materials that contact with human bodies are all non-toxic. 　 If the specification or function of the device is abnormal during measuring, stop measuring immediately and consult us. 　 Federal Law (U.S.A) restricts this device to sale by or on the order of a physician. Notes 　 Application of this device in the background of electromagnetic areas may influence the measurement accuracy such as electro-surgery environment. 　 SpO2 measurement may be adversely affected in the presence of strong ambient light. Shield the sensor area (with a surgical towel, for example) if necessary. 　 Dyes introduced into the bloodstream, such as methylene blue, indocyanine green, indigo carmine, and fluorescein, may adversely affect the accuracy of the SpO2 measurement. 　 Any condition that restricts blood flow, such as using a blood pressure cuff or extremes in systemic vascular resistance, may cause a failure to detect the accurate SpO2 value and pulse rate. 　 Remove fingernail polish or artificial fingernails before applying SpO2 probes. Fingernail polish or artificial fingernails may lead to inaccurate SpO2 readings. 5
MD300W4 PULSE OXIMETER 　 Optical cross talk can occur when two or more probes are located in adjoining area. It can be eliminated by covering each site with opaque material. Optical cross talk may adversely affect the accuracy of the SpO2 readings 　 Obstructions or dirt on the sensor’s emission or receiving windows may cause a sensor failure. Make sure there are no obstructions and the sensor is clean. 　 Hazards arising from software errors have been minimized. Hazard analysis conforms to meet ISO14971: 2000 and EN60601-1-4: 1996. Significant levels of dysfunctional hemoglogins, such as carboxyhemoglogin or methhemoglobin, will spawn an affection of the accuracy of the SpO2 measurement. 　 For routine equipment maintenance, please refer to the service procedures at the specific sections as indicated in the manual. 　 The circuit diagrams, the list of components, the illustration of diagrams, and the detailed rules of calibration, are provided exclusively to professional personnel authorized by our company. 　 Dispose of the device or its accessories end of life in accordance with the local ordinances and regulations, otherwise, discarding them as you like may cause pollution to the environment. 　 As to other attentions, please carefully look through the specific chapter in this instruction manual. 1.3 Intended Use This pulse oximeter is a portable, non-invasive device intended for continuous monitoring or spot checking, displaying and transmitting functional arterial oxygen saturation (SpO2) and pulse rate of single adult and pediatric (greater than 3 years of age) patients in hospital and home care. The device is reusable. The application site is finger. 1.4 Electromagnetism Interference 6
MD300W4 PULSE OXIMETER This pulse oximeter is designed and tested in compliance with the EMC standard, complying with the international standard for the EMC of the electronic medical device - IEC 60601-1-2. However, because of the proliferation of radio frequency transmitting equipment and other sources of electrical noise in the health-care and home environments (e.g. cellular phones, mobile two-way radios, electrical appliances) it is possible that high levels of such interference due to close proximity or strength of a source, may result in disruption of performance of this device. This apparatus complies with the IEC 60601-1-2 international standard. The requirements of this international standard are: CISPR11, GROP1, and CLASS B. 1.5 Explanation of Symbols Symbol IPX1 SN Meaning Attention, consult the accompanying documents. Type BF applied part Prevent from rain Storage temperature and relative humidity Protected against dripping water Serial number Date of Manufacture 7
MD300W4 PULSE OXIMETER SpO2 PR 1.6 Product Features Haemoglobin Saturation Pulse Rate Battery power indication Brightness Setting Battery Setting Reading ID Setting Version Information Return 　 Simple to use and easy to operate. 　 Portable and compact in design. 　 Long-distance data transmission by GPRS. 　 OLED display screen. 　 Power off automatically after 30s if no operation and measure are carried out. 　 Low power consumption: the backlight will turn off automatically when there is no operation in 30s. 　 Prompt information for low battery. 8
MD300W4 PULSE OXIMETER 2. GENERAL DESCRIPTION 2.1 Appearance Fig.2-1 Description of Fig.2-1 (1) SpO2 Socket: used for connecting SpO2 probe; (2) DisplayScreen; (3) Power Button: Press and hold this button for about 3 seconds to power the device on, and for about 4 seconds to turn the device off. 9
MD300W4 PULSE OXIMETER When there is no measurement and no press on keys for 30 seconds, “Auto Power Down” displays on the screen. And then it will power off automatically. (4) USB Interface: used for data transmission and power charging; (5) Menu Button: You can enter the menu interface by press this button in the measuring screen, press this button to enter the selected menu item and conform your setting; (6) Adjust Button: press this button to select different menu item and adjust its corresponding value; 2.2 Power Supply The device can be powered by Lithium-ion rechargeable battery. The Lithium-ion rechargeable battery with capacity 1500mAh can support the device working for 10 hours. Battery Installation: (1) Use your thumb to slide the battery cover in the direction of the mark, and lift the end of the cover upwards. Fig.2-2 Fig.2-3 Fig.2-4 (2) Put the battery into the battery compartment with correct polarity. (3) Carefully re-position the battery cover. Do not force the cover into other place; it fits well only when positioned properly. 10
MD300W4 PULSE OXIMETER Notes: 　 Keep away from source of fire and/or heat; 　 Do not disassemble battery and/or battery pack; 　 Do not connect the positive and negative pole directly using conductive metal; avoid short circuit; 　 Do not put the battery into water or damp it; 　 Do not cut the battery; 　 Do not strike or needle the battery; 　 Charge the battery using specified chargers; 　 Do not solder the battery directly; 　 Do not use the battery in un-specified application; Battery Charging: Power low alarm: When the battery indicator becomes a frame with display of “Power low” information, the unit will power off a time later. You should charge the battery in time. You can charge the battery by connecting the device to a computer through a USB cable. 11
MD300W4 PULSE OXIMETER 3. TAKE A MEASUREMENT 3.1 Sensor Installation Before measuring, connect the sensor/probe to the pulse oximeter as shown in the following figure. Fig.3-1 3.2 Take a Measurement (1) First plug the sensor into the interface of the pulse oximeter. Ensure that the sensor is plugged correctly and firmly. (2) Secondly fix the sensor on your finger correctly as shown in Fig.3-2. Be sure to make the finger touches the bottom of the probe and the nail surface is facing upwards. 12
MD300W4 PULSE OXIMETER Fig.3-2 (3) After several seconds the following interface will appear. Fig.3-3 Description of Fig.3-3 (1) SpO2 value measured; (2) Blood Oxygen plethysmogram; (3) Power quality indicator; (4) Pulse Bar; (5) Pulse rate value measured; 3.3 Factors That May Affect The Measurement 13
MD300W4 PULSE OXIMETER Proper sensor placement is critical for good performance. The following factors may degrade the performance of the pulse oximeter. Inaccurate measurements may be caused by: 1.Incorrect sensor application or use; 2.Excessive patient movement; 3.Significant levels of dysfunctional hemoglobins (e.g.,carboxyhemoglobin or methemoglobin); 4.Exposure to excessive light such as xenon light sources, bilirubin lamps or direct sunlight (should this occur, cover the sensor and application site with opaque material); 5.Intravascular dyes such as indocyanine green or methylene blue. Loss of pulse signal may be caused by: 1. Patient is in cardiac arrest or shock; 2. Applying the sensor too tightly; 3. Inflating a blood pressure cuff on the extremity where the sensor is attached; 4. Patient who has hypotension, severe vasoconstriction, severe anemia or hypothermia; 5. An arterial occlusion proximal to the sensor; 6. Excessive illumination. Potential adverse events: The following potential risks may be associated with the use of pulse oximetry sensors. The frequency and severity of these adverse events can vary, and may necessitate additional medical intervention, including surgery. 1. Swelling or reddening of skin; 2. Burns; 14
MD300W4 PULSE OXIMETER 3. Blisters; 4. Pressure sores; 5. Skin removal. 3.4 Applying The Belt The longer belt is applied to secure the oximeter around the user’s waist and the shorter one is for securing it around the user’s wrist. Please use the following steps to apply the belt securely and comfortably around the user’s waist or wrist: (1). Thread one terminal of the belt through one hole of the bracket, make sure the even side faces the oximeter and hook-and-loop fastener back to it. (2). One the already-threaded terminal of the belt, press the hook side onto the loop side to fix them, refer to Fig.3-4. (3) Thread the other terminal of the belt through the other hole of the bracket, refer to Fig.3-5. Fig.3-4 Fig.3-5 15
MD300W4 PULSE OXIMETER 4. SETTINGS Press and hold this button for about 3 seconds to power the device on, and then press the Menu button to enter the menu interface as shown in the following interface. Fig.4-1 4.1 Brightness Setting In the menu interface as shown in Fig.4-1 press the Adjust button to select the brightness icon , and then press the Menu button to enter the brightness set interface, you can change the brightness level by pressing the Adjust button. The setting range is 1~7. 4.2 Battery Setting In the menu interface as shown in Fig.4-1 press the Adjust button to select the battery icon , and then press the Menu button to enter the battery set interface, you can set the Power Save mode on or off. Power Save Mode: The screen will darkle in case of no press on keys for 20 seconds; The light of backlight will be restored whenever there is a key-press. 16
MD300W4 PULSE OXIMETER 4.3 Reading ID Setting In the menu interface as shown in Fig.4-1 press the Adjust button to select the Reading ID icon , and then press the Menu button to enter the Reading ID set interface, you can set patient ID in this interface. 4.4 Version Information In the menu interface as shown in Fig.4-1 press the Adjust button to select the version icon , and then press the Menu button to enter the version information interface, you can check the information on version of software. 4.5 Return You can return to the measurement screen by performing this item. Note: The system returns to the measurement screen as shown in Fig.3-3 in case of no press on keys for 10 seconds. 5. MAINTENANCE AND CLEANING Warning! The advanced circuit inside the oximeter does not require periodic calibration and maintenance, instead of replacing the batteries. Don’t open the cover of oximeter or repair electronic circuits. Its open will cause the damage of the device and the annulment of the warranty. 5.1 Equipment Maintenance Use only the substances approved by us and methods listed in this chapter to clean or disinfect 17
MD300W4 PULSE OXIMETER your equipment. Warranty does not cover damage caused by unapproved substances or methods. We make no claims regarding the efficacy of the listed chemicals or methods as a means for controlling infection. For the method to control infection, consult your hospital’s Infection Control Officer or Epidemiologist. Keep your equipment and accessories free of dust and dirt. To avoid damage to the equipment, follow these rules: 　 Always dilute according the manufacturer’s instructions or use lowest possible concentration. 　 Do not immerse any part of the equipment into liquid. 　 Do not pour liquid onto the equipment or accessories. 　 Do not allow liquid to enter the case. 　 Never use abrasive materials (such as steel wool or silver polish), or erosive cleaners (such as acetone or acetone-based cleaners). Caution: If you spill liquid on the equipment or accessories, contact us or your service personnel. Note: To clean or disinfect reusable accessories, refer to the instructions delivered with the accessories. 5.2 Battery Maintenance Warning! Dispose of all used batteries in a proper waste disposal according to local applicable regulations. For detailed information about battery maintenance please refer to chapter 2.2 Power Supply. 5.3 Preventive Maintenance The following simple preventive maintenance tasks should be performed monthly to ensure 18
MD300W4 PULSE OXIMETER continued performance of the device at maximum capacity, and to reduce the possibility of a failure. Mechanical Inspection Check for splits, cracks or imperfections in the case. If you have any questions or doubts, call your service provider. Do not make any repairs by yourself Do not attempt to open or disassemble your oximeter, if so you may run the risk of electric shock and void the limited warranty. No user-serviceable parts are inside. Only authorized service personnel may repair the product. 5.4 Cleaning Your equipment should be cleaned on a regular basis. If there is heavy pollution or lots of dust and sand in your place, the equipment should be cleaned more frequently. Before cleaning the equipment, consult your hospital’s regulations for cleaning the equipment. Recommended cleaning agents are: 　 Mild soap (diluted) 　 Ammonia (diluted) 　 Sodium hypochlorite bleach (diluted) 　 Hydrogen peroxide (3%) 　 Ethanol 　 Isopropanol (70%) To clean your equipment, follow these rules: 1. Shut down the pulse oximeter and take the batteries out of the battery compartment. 19
MD300W4 PULSE OXIMETER 2. Clean the display screen using a soft, clean cloth dampened with a glass cleaner. 3. Clean the exterior surface of the equipment using a soft cloth dampened with the cleaner. 4. Wipe off all the cleaning solution with a dry cloth after cleaning if necessary. 5. Dry your equipment in a ventilated, cool place. Cautions: 　 Do not allow any liquid to enter the case, and avoid pouring water or other liquid on the device while cleaning. 　 Never use abrasives such as wire wool or metal polish. 　 During cleaning, make sure you do not expose the device to temperature excess of 40°C. 　 Please take out batteries before cleaning the oximeter. Warnings! To reduce the chance of shock or injury, do not use your oximeter in or near water or wet locations. 　 Keep your oximeter away from sources of liquids, such as drinks, wash basins, bathtubs, shower stalls, and so on. 　 Protect your oximeter from direct sunlight and rain or other moisture. 　 Take care not to spill any food or liquid on oximeter. If you do, unplug oximeter before cleaning up the spill. 　 Depending on what you spilled and how much of it got into your equipment, you may have to send your equipment to Apple for service. Environment 　 Keep away from extreme heat. Do not leave it on the dashboard of a car or near a heater. Do not leave it in any place that is extremely damp or dusty. 20
MD300W4 PULSE OXIMETER 　 As this product is not waterproof, do not use it or store it where fluids such as water can splash onto it. Raindrops, water spray, juice, coffee, steam, perspiration, etc. may also cause a malfunction. 　 Keep accessories that might be swallowed away from children. 6. TROUBLESHOOTING Trouble 1: When the probe is not inserted or the probe is faulted, the system may prompt user by the information “Probe Off”. Solution 1: Reinsert the sensor or change to a new available sensor. Trouble 2: When the finger is not inserted into the probe or the probe can not detect any signal, the system may prompt user by the information“Finger Off”. Solution 2: Pull your finger out and reinsert it to make your finger fully contact the inner detector of probe or rub your hands to warm them if your hands are too cool. When encountering other troubles, please contact our service department. 7. WARRANTY AND REPAIR 7.1 Service Method a）Maintenance responding time: 9:00am～17:30pm, Monday to Friday b）Service support: Our company will offer user telephone and e-mail support and parts change. Parts change: our company will change parts when necessary, free of charge during the warranty period. User should send all defective parts back to our company if not specified otherwise. 21
MD300W4 PULSE OXIMETER c）Update the system software free of charge. 7.2 Warranty Limitations a) Our company isn’t responsible for such damage caused by force majeure. For example: fire, thunder flash, flood, cyclone, hail, earthquake, house collapse, commotion, plane crash and traffic accident, deliberate damage, lack of fuel or water, labor and capital bother, strike and stop-working etc. b) No-service offer The corresponding charge and insurance charge of disassembling, refurbishing, repackaging and moving the oximeter or the part of it. The damage caused by the third party not authorized by our company to adjust, install, replace the parts of the oximeter. The damage and failure caused by the user or its representative non-compliance with the operator’s manual. c) The oximeter is installed or connected with an external device (eg. printer, computer) without our company’s permission and this leads to oximeter failure. In such case our company will charge for the maintenance. d）Responsibility limitation During the period of maintenance contract validity, if user changes any parts manufactured by other manufacturers without the permission of our company, our company is entitled to stop the contract. 7.3 User Guarantee a) Please read the manual carefully before operation 22
MD300W4 PULSE OXIMETER b) The advanced circuit inside the oximeter does not require periodic calibration and maintenance, instead of replacing the batteries. 7.4 No-Warranty Principle The annulment of the warranty will be caused by following instances: 　 There is physical damage to the oximeter and/or its accessories. 　 There are liquid leftovers and this has led to short circuit and plugboard failure. 　 The probe and accessories belong to consumption and will not be replaced free. 　 Damage of probe caused by mechanical force will not be replaced free. 　 Oximeter Maintenance seal has been removed. 　 Bad packaging leads to oximeter damage during the transportation. 　 Oximeter operation by non-professional or without reading the manual first leads to oximeter failure. 7.5 Warranty Period Our warranty for oximeter complies with electronic product after-sale service standard regulated by national laws. The warranty period of mainboard is one year, and for all the accessories the period is three months. 7.6 Repackage 　 Take all the accessories and put them into plastic bag. 　 Try to use original package and packing materials. User will be responsible for such damage caused by bad package during transportation. 　 Please describe failure in detail 23
MD300W4 PULSE OXIMETER 7.7 Storage and Transportation Storage: Storage Temperature -20°C～55°C, Relative Humidity≤93%. Transportation: Transport by air, train or vessel after packing according to request. APPENDIX SPECIFICATIONS Note: The specifications are subject to change without prior notice. Display Display Type: OLED Display Parameter: SpO2, pulse rate, pulse bar, SpO2 plethysmogram, date and time, power quality indicator and other prompt information. Data Update Time: <15s. SpO2Display Range: 0%-100% Measuring Range: 70%-100% Measuring Accurate: 70%-100%±3%, ＜70% unspecified Resolution: 1% PR Display Range: 0～255bpm Measuring Range: 30～235bpm Measuring Accurate: ±2bpm or 2% (the greater) Resolution: 1bpm Operating Conditions 24
MD300W4 PULSE OXIMETER Operating temperature: 5℃～40℃ Relative humidity: ≤80% (non-condensation) Atmosphere pressure: 86kPa～106kPa Package & Storage Conditions Storage temperature: -20℃～55℃ Relative humidity: ≤93% (non-condensation) Atmosphere pressure: 50kPa～106kPa Power Support A rechargeable Li-battery with the voltage of 4.2V and battery capacity 1500mAh. Continuous working time: 10 hours. Equipment Classification According to the type of protection against Electrical shock: Internal electrical power source equipment; According to the degree of protection against Electrical shock: Type BF equipment; According to the degree of protection against harmful ingress of water: IPX1; According to the mode of operation: Continuous operation; Dimensions & Weight Dimensions: 133mmX63mmX33mm (length×width×height) Weight: 200g (including batteries) 25
FCC ID: WWIMD300W4 Model No.: MD300W4 Manufacturer: Beijing Choice Electronic Technology Co., ltd This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: -- Reorient or relocate the receiving antenna. -- Increase the separation between the equipment and receiver. -- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. -- Consult the dealer or an experienced radio/TV technician for help. This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. End users must follow the specific operating instructions for satisfying RF exposure compliance. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. This equipment has been SAR-evaluated for use in hand. SAR measurements are based on a 0cm spacing from the body and that compliance is achieved at that distance. The highest SAR value tested when properly worn on the body is 0.367 W/kg.
MD300W4 PULSE OXIMETER Standard Accessories 　 One SpO2 Sensor (model: M-50G) 　 One lithium ion rechargeable battery (1500mAh) 　 One USB cable 　 One Operator’s manual 　 One piece of wrist belt 　 One clip for wrist belt Manufacturer address: Beijing Choice Electronic Technology Co.，Ltd. Bailangyuan Building B Rm. 1127-1128, Fuxing Road, A36 100039 Beijing PEOPLE’S REPUBLIC OF CHINA 26

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