Etekcity Lasergrip 749 Infrared Thermometer

Thank you for purchasing the Lasergrip 749 Infrared Thermometer by Etekcity. This easy-to-use device allows for convenient and accurate measurement of surface temperatures from a distance without direct contact. For questions or concerns, contact customer support toll-free at 855.686.3835 or via email at support@etekcity.com.

Safety Use & Care

• Do not point the laser-light at another person or animal.
• Do not attempt to point laser-light at an aircraft.
• Avoid direct/indirect eye contact with the laser-beam. Laser radiation may cause eye damage.
• Do not view the beam with optical instruments.
• In the vicinity of use, make any bystanders aware of the dangers of looking directly into the laser beam.
• Do not allow children to operate the device.
• Use a 9V battery when replacing the battery. Ensure correct polarity.
• Always remove batteries when cleaning the device.
• Do not use leaking batteries or dispose of old batteries in fire.
• Remove battery for storage if the device is not being used for a prolonged period.
• Do not disassemble the device or tamper with internal components; this will void the warranty.
• Do not touch the lens or wipe it with anything other than a soft cloth or cotton swab.
• Keep the thermometer away from strong electromagnetic fields.
• Do not expose the thermometer to direct sources of heat for extended periods.
• The thermometer measures surface temperature, not internal temperature. Do not use for measuring body temperatures.

Laser Warning

CAUTION: LASER RADIATION. DO NOT STARE INTO BEAM.

WAVELENGTH 630~670nm, MAXIMUM OUTPUT <1mW, CLASS II LASER PRODUCT.

WARNING: THIS DEVICE PRODUCES CLASS 2 LASER RADIATION. USE EXTREME CAUTION. DO NOT LOOK INTO DIRECT OR REFLECTED LASER-LIGHT BEAM OR VIEW BEAM WITH OPTICAL INSTRUMENTS. DO NOT AIM LASER-LIGHT AT ANOTHER PERSON OR ANIMAL. LASER RADIATION MAY DAMAGE YOUR EYE. DO NOT DISASSEMBLE THE DEVICE.

IMPORTANT: Read all instructions. Failure to comply may result in hazardous radiation exposure.

Features & Specifications

Features

• Laser-guided targeting for aiming precision.
• Narrow distance-spot ratio for accurate results at greater distances.
• Safely measure hazardous or inaccessible objects.
• Standard 9V battery powers up to 12 hours of cumulative use.
• Auto-off after 15 seconds of inactivity.

Specifications

• Measurement Range: -58°F ~ 716°F (-50°C ~ 380°C)
• Operating Environment: 32°F~122°F (0~50°C)
• Accuracy: ±2% / ±2°C
• Resolution: 0.1°F / °C
• Maximum Output: < 1 mW
• Wavelength: 630-670 nm
• Distance-Spot Ratio: 12:1
• Response Time: < 500 ms
• Emissivity: 0.95
• Battery: DC 9V

Function Diagram

The device features the following components:

1. LCD Display
2. Unit Switch Button (°C/°F)
3. Laser Pointer On/Off Button
4. Display Backlight On/Off Button
5. Measurement Trigger
6. Battery Compartment
7. Laser Hole
8. IR Sensor

Operation

Surface Temperature Measurement

Note: The Lasergrip cannot measure temperatures through glass. Inaccuracy may occur with steam, dust, or air contaminants.

1. Press the measurement trigger to activate the device.
2. Point the Lasergrip towards the surface to be measured.
3. Press and hold the trigger; the laser activates for aiming.
4. Continue holding the trigger for live scanning of the surface temperature.
5. Release the trigger when the laser is on the desired point; the LCD will display the locked temperature.
6. Press the trigger again for another measurement.

HOLD for continuous temperature reading; RELEASE to lock the temperature result.

Note: The LCD displays 'HI' for temperatures above the measurable range and 'LO' for temperatures below the measurable range.

Unit Conversion

To switch between Celsius (°C) and Fahrenheit (°F), press the °C/°F button at any time while the Lasergrip is on.

Laser Activation

Press the laser pointer On/Off button to activate or deactivate the laser beam.

Display Backlight Operation

Press the display backlight On/Off button to activate or deactivate the display backlight.

Battery Replacement

A low battery icon will appear on the LCD when the battery is low. Replace the battery immediately.

1. Open the battery compartment and remove the used battery. Dispose of it properly.
2. Connect a new DC 9V battery, ensuring correct polarity.
3. Insert the battery and close the compartment lid, ensuring wiring is not pinched.

Ensure wiring is not bulging out of the compartment and polarity is facing upward.

Distance-Spot Ratio

The Lasergrip 749 measures surface temperature based on its distance-to-spot diameter ratio (D:S). As distance increases, the measured surface area also increases. With a 12:1 ratio, the measured spot diameter is approximately 1/12 of the distance.

For accuracy, ensure the target surface area is at least twice the spot diameter. Insufficient surface area leads to inaccurate results. The recommended measurement distance is 14.17 inches (36 cm), creating a spot diameter of 1.18 inches (3 cm).

Diagram Description: Shows distance 'D' and spot diameter 'S', with D:S = 12:1. Recommends a distance of 14.17 inches for a spot size of 1.18 inches.

Emissivity

Emissivity is a material's efficiency in emitting thermal energy. Non-reflective surfaces have higher emissivity (closer to 1) than reflective surfaces (closer to 0). Measuring reflective surfaces (like glass, polished wood, granite) can lead to inaccurate results.

To measure reflective surfaces accurately:

1. Place masking tape over the target surface.
2. Allow the tape to reach the surface temperature for approximately 30 minutes.
3. Measure the taped section to eliminate emissivity-related inaccuracies.

Device Labels

Certification information (CE, FCC) is located on the left side of the Lasergrip. Warning and aperture safety information are on the right side. Updates to product information (date of manufacturing, manufacturer address) may be added as adhesive overlays.

Package Contents

• 1 x Etekcity Lasergrip 749 Infrared Thermometer
• 1 x 9V DC Battery
• 1 x User Manual

Federal Communication Commission Interference Statement

This device complies with Part 15 of the FCC Rules. Operation is subject to two conditions: (1) this device may not cause harmful interference, and (2) it must accept any interference received, including interference that may cause undesired operation.

This equipment has been tested and found to comply with Class B digital device limits under Part 15 of FCC Rules, designed for reasonable protection against harmful interference in residential installations. If interference occurs, try correcting it by: reorienting/relocating the antenna, increasing separation between equipment and receiver, connecting to a different circuit, or consulting a dealer/technician.

FCC Caution: Unauthorized changes may void the user's authority to operate this equipment.

Warranty Information

Your product comes with a 2-year warranty from the date of purchase. Scan the QR code or visit etekcity.com/warranty to register your product, receive exclusive news, and access customer support and warranty information.

Customer Support

For issues or questions regarding your new product, contact the Etekcity Customer Support Team.

Etekcity Corporation
1202 N. Miller St., Suite A
Anaheim, CA 92806

Email: support@etekcity.com

Toll-Free: (855) 686-3835

Support Hours: Mon-Fri, 9:00 am-5:00 pm PST/PDT

Please have your invoice and order ID ready when contacting support.