Carrot Sense FP20021 CO Breath Sensor User Manual
Carrot Sense, Inc. CO Breath Sensor
User manual
Carbon Monoxide (CO)
Breath Sensor System (COBSS)
FP-20021
Draft User Manual
Carrot Sense, Inc. Carbon Monoxide (CO) Breath Sensor System (COBSS)
User Manual
Contact Information:
In case of medical emergency, call 911.
For assistance and support, call the Carrot Sense help-line: 1-XXX-XXX-XXXX
Manufactured For:
Carrot Sense, Inc.
1600 Seaport Blvd, Suite 150
Redwood City, CA 94063
U.S.A.
www.carrotsense.com
We advise that you read this entire manual before operating the device.
Carrot Sense, Inc. Carbon Monoxide (CO) Breath Sensor System (COBSS)
User Manual
Table of Contents
1 System Overview ..................................................................................................................... 1
2 Background Information (Smoking and Breath Carbon Monoxide) ....................................... 1
3 Indications for Use ................................................................................................................... 1
4 Contraindications .................................................................................................................... 1
5 Warnings .................................................................................................................................. 1
6 Precautions .............................................................................................................................. 1
7 Notes ....................................................................................................................................... 2
8 Contents .................................................................................................................................. 2
9 CO Breath Sensor ..................................................................................................................... 2
9.1 Charging the CO Breath Sensor ........................................................................................ 2
9.2 Cleaning ............................................................................................................................ 3
9.3 Straws ............................................................................................................................... 3
10 Breath Sensor Application ....................................................................................................... 3
10.1 Pairing to Smartphone ..................................................................................................... 3
10.2 Getting Started ................................................................................................................. 4
10.3 Submitting a Breath Sample ............................................................................................. 5
10.4 CO Log .............................................................................................................................. 6
10.5 CO Breath Sensor Settings ............................................................................................... 7
10.5.1 Connection Status, Sync Status and Battery Life .................................................... 7
10.5.2 Reminders, Vibration, Volume ................................................................................ 8
10.5.3 Utilities .................................................................................................................... 8
10.6 Help .................................................................................................................................. 9
10.6.1 Breath Test Video Tutorial ...................................................................................... 9
10.6.2 Using Your Breath Sensor ....................................................................................... 9
10.6.3 About ....................................................................................................................... 9
10.6.4 Legal ........................................................................................................................ 9
11 Product Specification ............................................................................................................. 10
12 Electrical Safety ......................................................................... Error! Bookmark not defined.
13 Definitions and Symbols ........................................................................................................ 10
14 Troubleshooting .................................................................................................................... 11
15 Frequently Asked Questions.................................................................................................. 11
16 Service ................................................................................................................................... 12
17 Warranty, Return Goods Policy ............................................................................................. 12
Carrot Sense, Inc. Carbon Monoxide (CO) Breath Sensor System (COBSS)
User Manual
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1 System Overview
The Carbon Monoxide (CO) Breath Sensor System (COBSS) consists of a personal mobile
breath sensor (CO Breath Sensor) capable of measuring a user’s level of CO in their exhaled
breath and a Breath Sensor App (BSA) for smartphones which displays the exhaled breath
CO value to the user.
2 Background Information (Smoking and Breath Carbon Monoxide)
Smoke from a burning cigarette contains high levels of carbon monoxide or CO (a by-
product of combustion). When cigarette smoke is inhaled into the lungs, CO enters the
bloodstream. Over time, the CO is slowly released in the exhaled breath. The level of CO
in exhaled breath can be measured using the CO Breath Sensor and the Breath Sensor App,
which together, make up the CO Breath Sensor System or COBSS.
The amount of carbon monoxide in the exhaled breath of a smoker is related to the
intensity, frequency, technique and amount of smoking behavior. Simply put, the more
one smokes, the higher their exhaled breath CO levels tend to be. When a smoker stops
smoking (smoking cessation), their exhaled breath CO levels drop within a few days to
values seen in non-smokers. Exhaled breath CO readings have been shown to be useful for
smokers who are trying to quit smoking (smoking cessation), as the personal CO
information provides educational feedback regarding their smoking exposure.
3 Indications for Use
The Carbon Monoxide Breath Sensor System is a breath carbon monoxide monitor
intended for single-user use in smoking cessation programs.
4 Contraindications
There are no known contraindications at this time.
5 Warnings
• Low levels of CO do not indicate that it is safe to increase your smoking. Smoking is
harmful to your health and any amount of smoking is unsafe.
6 Precautions
• Sit down while doing breath samples. Holding your breath and then blowing into the
device may cause some users to become lightheaded, which may lead to falls.
• Do not strain while doing a breath sample, as this may cause lightheadedness, which
may lead to falls.
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User Manual
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• When taking a deep breath in to do a breath sample, do not take this breath in through
the straw or CO Breath Sensor.
• Do not use the COBSS while operating any type of vehicle or machinery as you may be
distracted from the operation.
• After cleaning straws with soap and water, ensure they are dry inside and out before
using.
• The straw is a small part and may be a choking hazard. Keep away from children under
3 years.
• Do not use any alcohol containing products, such as alcohol wipes or gel, on the CO
Breath Sensor as they may interfere with the function of the CO Breath Sensor and CO
values.
• Do not submerge the CO Breath Sensor in water or other liquids.
7 Notes
• Do not use in cases of suspected carbon monoxide poisoning. Call 911.
• Do not use in cases of suspected smoke inhalation (e.g. from a fire). Call 911.
• Do not use the CO Breath Sensor while plugged in for charging as it will not function.
8 Contents
CO Breath Sensor packaging includes:
• CO Breath Sensor with straw inserted
• 7 straws in a bag
• Micro USB charging cable
• User Manual (this document)
9 CO Breath Sensor
The CO Breath Sensor is portable, battery-powered, and small enough to be conveniently
carried by the user (e.g. pocket, purse, backpack).
9.1 Charging the CO Breath Sensor
Insert the micro USB plug into the CO Breath Sensor. Connect the cable to a USB
charging port on a computer or USB charging cube. It takes 1 to 2 hours to fully
charge. When the CO Breath Sensor is plugged in:
• LED pulses orange to indicate charging
• LED turns solid green to indicate fully charged
• Device will NOT function to receive breath samples
• Device will provide notifications for sampling (if enabled)
Carrot Sense, Inc. Carbon Monoxide (CO) Breath Sensor System (COBSS)
User Manual
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Figure 1. CO Breath Sensor
9.2 Cleaning
Cleaning is optional. If you choose to clean, use a lightly damp clean cloth to wipe
down the outside CO Breath Sensor. Do not allow water to enter any openings in the
device.
9.3 Straws
Straws are reusable and may be cleaned. To clean, wash with mild hand soap and
warm water and allow to completely dry before use. Replace as necessary.
10 Breath Sensor Application
10.1 Pairing to Smartphone
See Product Specifications for compatible smartphones to pair with your CO Breath
Sensor. Follow these steps to pair:
a. On your smartphone, download and install the My Breath CO application from
the Apple App Store (iOS) or Google Play (Android).
b. On your smartphone, turn Bluetooth “on”.
c. Open the My Breath CO application. You will see a welcome screen followed by
a Breath Sensor Pairing animation.
d. Your smartphone will look for any available, ready-to-pair, CO Breath Sensors.
Straw
Port for
Charging
Cable
Light (LED)
Button
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User Manual
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e. To make your CO Breath Sensor available for pairing, press and hold the CO
Breath Sensor button until the LED flashes cyan (light blue), then release the
button.
f. If your CO Breath Sensor LED flashes green, tap Confirm on the screen to
complete the Bluetooth pairing process.
g. If your CO Breath Sensor is NOT flashing green, wait to select the Try Again
button and start again.
10.2 Getting Started
After successful pairing, you will be directed to the Getting Started page, where you
will watch the Breath Test Video Tutorial. This video provides instruction about how
to use your CO Breath Sensor to measure the amount of CO in your breath. You must
watch this video in order to continue further into the app.
After viewing the Breath Test Video Tutorial, you will go to an interactive tutorial
called YOUR Guided Breath Test (GBT). In YOUR GBT, you’ll learn how to submit a
breath sample by following interactive on-screen prompts.
Before using YOUR GBT, make sure your sensor is fully charged and in your hand, and
make sure the air temperature is not too cold or too hot (between 40oF and 90oF) so
that the sensor can fully detect when you start and stop blowing.
YOUR GBT will guide you through the steps and timing of taking a deep breath in,
holding it, and then blowing gently into the CO Breath Sensor.
a. The sensor and app determine if you have provided an adequate breath sample:
i. If yes, you will see a “success” screen with a smiley face; tap View Results
to view your results on the CO Log screen.
ii. If the submitted sample was not adequate, you will be asked to repeat
the Guided Breath Test. Reasons for inadequate breath sample include
blowing too soon, not long enough, or starting too late.
Adequate breath sample Inadequate breath sample
b. You may repeat the video tutorial or Guided Breath Test as often as you like by
going to the Help screen.
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10.3 Submitting a Breath Sample
a. Insert a straw in the inlet of CO Breath Sensor.
b. Press and hold the button until you hear a beep and the LED starts flashing blue.
Take a deep breath in and hold it, and release the button. You will hold your
breath for 10 seconds.
NOTE: If you cannot hold your breath for a full 10 seconds, you may begin holding
your breath a few seconds after the first notification beep. In this case, you will
hold your breath for less than 10 seconds. Your breath CO (ppm) results may be
slightly lower if you do not hold your breath for the full 10 seconds.
c. After about 8 seconds, you will hear the first of 3 beeps to prepare you to blow
into the sensor.
d. Upon the third beep, gently blow into the straw and CO Breath Sensor for about
12 seconds or until you exhaust your entire breath.
e. After you stop blowing, the LED will flash either green or red.
Table 1. LED Light Indications After Breath Sample
LED Light
Description
Green
You provided an adequate breath sample and your data was
saved
Red
Your breath sample was not adequate, which may be due to:
1. You started blowing into the sensor before the third beep
(too early)
2. You waited too long after the third beep before starting to
blow (too late)
3. You did not blow long enough (minimum 6 seconds) (not
long enough)
f. The CO values and the date and time of the breath sample are saved on the CO
Breath Sensor until it syncs with your smartphone.
g. Syncing occurs automatically when the app is open and is able to connect to the
CO Breath Sensor (sensor is near-by, smartphone Bluetooth is on, sensor is
charged).
h. If you need to cancel a breath test at any time after initiating, hold down the
Breath Sensor button for 3 seconds (you will feel a slight pulse to confirm it
cancelled, and the LED will stop flashing).
Figure 2. Doing a Breath Sample
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User Manual
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10.4 CO Log
a. The CO Log is the default screen when you open the app and is where you can
view your breath sample results.
b. In the CO Log, you can scroll up and down to view each of your CO Breath
sample results by date and time.
Figure 3. CO Log
c. Your CO breath sample values are presented in parts per million (ppm) within
color coded bars (See Error! Reference source not found.). Higher numbers
represent higher levels of CO in your breath.
Table 2. Color Coded Bars according to Breath CO Levels (ppm)
CO
Color
Description
0-6 ppm Green
typical values in a
non-smoker
7-9 ppm Orange
non-specific, not
typical for one
group or the other
10 ppm or greater Red
typical values in a
smoker
d. The length of each bar relates to the CO value, as well, to show you the relative
value of each sample. Longer bars indicate a higher level of CO than shorter
bars.
Carrot Sense, Inc. Carbon Monoxide (CO) Breath Sensor System (COBSS)
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e. Maximum bar width = 50 ppm; any value above 50 ppm is shown as the 50 ppm
bar length for ease of viewing and is marked with a white arrow.
f. From the CO Log, you can go to the CO Breath Sensor screen by tapping the
settings (gear and sensor) icon in the CO Log header. You can also go to the Help
screen by tapping the question mark icon in the CO Log header.
Figure 3. Icons to go to CO Breath Sensor (left) and Help (right) Screens from
CO Log
g. To return to the CO Log from other pages (CO Breath Sensor and Help screens),
tap CO Log in the upper left corner.
Figure 4. Icon to Return to CO Log
10.5 CO Breath Sensor Settings
The CO Breath Sensor page allows you to view your CO Breath Sensor status
(Connected, Syncing or Not Connected), last sync, and battery status. It also allows
you to set reminders and perform other functions in utilities. This page can be
accessed by tapping the settings (gear and sensor) icon within the CO Log header.
Figure 3. Icon to go to CO Breath Sensor Screen
10.5.1 Connection Status, Sync Status and Battery Life
The connection status will either be Connected, Syncing or Not Connected. Last
sync is shown in time (min, hours) and battery life is shown as a “%”.
Figure 4. Connection Status, Sync Status and Battery Life
Carrot Sense, Inc. Carbon Monoxide (CO) Breath Sensor System (COBSS)
User Manual
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10.5.2 Reminders, Vibration, Volume
You may use the Reminders function to help you remember to submit breath
samples throughout your day. Reminders must be toggled to green (on) to access.
When reminders are on, the CO Breath Sensor will deliver notifications. These
notifications take the form of a flashing LED, beeps and/or vibration. You may
modify the following reminder settings:
a. Time of the First Reminder of the day (default 7 am)
b. Time of Last Reminder of the day (default 11 pm)
c. Reminder time interval (default every 1 hour)
d. Type of reminder
i. Vibration (Off, Low, Medium, High) (default Medium)
ii. Volume of beep (Off, Low, Medium, High) (default Medium)
e. A separate control is provided for the volume of the beep prompts that occur
when you submit a breath test (off, low, medium, high) (default is medium)
Figure 5. Reminders Activated (green = on)
10.5.3 Utilities
Use Utilities to access additional functions:
a. Sync Now
Manually syncs the CO Breath Sensor with the smartphone.
b. Ring Sensor
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Make your CO Breath Sensor “ring”. Helpful if you have misplaced it. Sensor must
be connected to the smartphone for the sensor to ring.
c. Forget Sensor
Unpair the connected sensor. After unpairing, you can pair with a new sensor.
10.6 Help
The Help Menu provides access to the video tutorial and Guided Breath Test,
described earlier in this User Manual, as well as a frequently asked questions section.
Additional information about the CO Breath Sensor System is located under About
within the Help page. This page can be accessed by tapping the question mark icon
within the CO Log header.
Figure 6. Help Icon
10.6.1 Breath Test Video Tutorial
View a video on how to properly give a breath sample
10.6.2 Using Your Breath Sensor
a. Guided Breath Test
Step by step instructions to complete a breath sample.
b. Frequently Asked Questions
Responses to common questions.
10.6.3 About
c. Email Your CO Data
Email a copy of your CO log data (.csv file).
d. Send Report to Technical Support
Notify Carrot Sense of any technical issue you might be having.
e. Breath Sensor ID
The CO Breath Sensor identification.
f. Firmware Version
The version of the firmware on the CO Breath Sensor.
g. App Version
The version of the app installed.
10.6.4 Legal
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User Manual
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This section contains Carrot Sense’s Terms of Service and Privacy Policy.
11 Product Specification
Table 3.Product specifications
Description
Carbon Monoxide Concentration range (ppm)
0-100
Detection Principle
Electrochemical sensor
Repeatability
±10%
Any known interferants
TBD
Power
Lithium battery
Battery life
7 days per charge
Operating Temperature
40oF-85oF for breath tests
40
o
F-104
o
F for all other functions
Operating Humidity range
10-90% non-condensing
Sensor life
3 years
Sensor Drift
5% per year
Weight
TBD
Dimensions
2.5x4.5x6.0cm
Materials
Device enclosure: Polycarbonate
Straw: Polypropylene
Power supply specifications
5Vdc 250mA
Breath Sensor app is compatible with:
iPhone (x, y, z) with iOS XX or later
TBD
Android (x, y, z)
TBD
Bluetooth type
Bluetooth low energy (BLE)
12 Definitions and Symbols
Table 4.Definitions
Term
Definition
CO
Carbon Monoxide, a by-product of combustion
ppm
Parts per million
Table 5. Symbols
Symbol
Definition
Manufacturer
Use-by date
Carrot Sense, Inc. Carbon Monoxide (CO) Breath Sensor System (COBSS)
User Manual
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Symbol
Definition
Batch code
Catalog Number
Do not use if package is damaged
Consult instructions for use
Single User Only
Type BF Applied Part
QTY
Quantity
FCC ID
Federal Communications Commission certification identification number
13 Troubleshooting
• If your paired CO Breath Sensor is not syncing with your smartphone, make sure your
CO Breath Sensor is fully charged and is near the smartphone.
• If CO Breath Sensor is showing “Not Connected” in the CO Breath Sensor screen, make
sure that Bluetooth is activated on your phone and that the CO Breath Sensor is
charged. If paired, the CO Breath Sensor and application will sync automatically.
14 Frequently Asked Questions
• What if I can’t hold my breath for the 10 seconds prior to blowing into the CO Breath
Sensor?
Try waiting a few seconds after being prompted to take a deep breath in. This
shortens your breath hold time by a few seconds. As a result, the CO ppm readings
may be lower than if you had held your breath for the full 10 seconds.
• How can I review how to give a breath sample?
Go to the Help screen and repeat the video tutorial and/or Guided Breath Test.
Carrot Sense, Inc. Carbon Monoxide (CO) Breath Sensor System (COBSS)
User Manual
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15 Service/Maintenance
No service or maintenance is to be performed on the device by the user.
16 Warranty, Return Goods Policy, Disposal Instructions
TBD
The device contains a lithium battery that needs to be disposed of properly per the
regulations of your area.
17 FCC Regulatory Statement
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.
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 to 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.
Important: Changes or modifications to this product not authorized by Carrot Sense could void the
electromagnetic compatibility (EMC) and wireless compliance and negate your authority to operate
the product.
P/N LB-20000 Rev. 2