What is the Breath Alcohol Tester with Fuel Cell sensor

Fuel cell breathalyzer is the 'gold standard' of hand-held alcohol tester for both personal and professional use. They are the choice of professional users such as Law Enforcement and serious personal users such as concerned parents and individuals who require measurement they can trust.
In fuel cell instruments, the breath is directed into a fuel cell with dual platinum electrodes where alcohol is oxidized and generates electrical current. The higher the alcohol content of the breath, the greater the output current of the fuel cell. This current is a direct indication of the amount of alcohol consumed by the fuel cell. By precisely measuring the current produced in the fuel cell, an accurate measure of Breath alcohol content (BAC) is recorded.
CA10FS uses the Platinum Fuel Cell Technology that has the following performance characteristics not found in semiconductor devices.

* High accuracy.
CA10FS is consistently accurate across a wide alcohol concentration range from 0.00 to 0.40 BAC. Unlike semiconductor devices, the CA10FS can report 3-digit BAC measurement accuracy because of the precision of its Platinum Fuel Cell Technology.
* Alcohol specific.
Semiconductor devices can give positive alcohol readings even when no alcohol is present. They will react to perfume, hairspray, gasoline, cigarette smoke, and breath substances such as acetone and ketones. CA10FS measurements are always and only.
* Calibration stability.
Unlike semiconductors which require frequent re-calibration, CA10FS recommends recalibration only once every six months under normal use.
* Long working life.
Unlike Semiconductor devices that have a short life span, CA10FS Fuel Cell instruments have an expected working life of 3~5 years. CA10FS fuel cell tester will be in the field and in continuous use by medical clinics and personal or other industrial measurement requirements.
* Reliable.
The combination of long working life, calibration stability, alcohol specificity, and high precision all add up to a device that when properly maintained can be trusted to perform.

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* Fuel Cell Sensor (Own developed high selective sensor)
* Fast warm-up, respond and recovery
* Law enforcement grade accuracy (3rd decimal place display)
* Easy Calibration & low cost maintenance
* Intelligent functions
-  Accurate sampling system
-  Self-diagnosis system (Flow, Calibration, Temperature, Low battery)
-  Auto power saving



1. Insert a mouthpiece into the mouthpiece inlet
2. Push the ON/OFF power switch that is located in the right side under the display window.
- The unit will show "Full display" firstly and "on" along with a welcome sound. And then it starts countdown which will be taken
  about 15 ~ 35 seconds. This warm-up process prepares the sensor and circuit for testing.
3. When you hear a beep sound & "bLo" display is on,
   please blow steadily into the mouthpiece until you would hear the "Beep" sound again.
   Stop blowing.
- In this stage, if you don't blow within 20 seconds, it automatically turns off.
  Try to power on again.
4. After the circling line is on the display for 3 ~ 22 seconds, the test result will be displayed for 20 seconds along with beep sound.
- If the test result is over 0.25mg/l / 0.50 %
o (default setting) respectively, "WARN" signal (Red LED) will light up along with "Alarm" sound
- The result will be displayed for 20 seconds .(Result display along with "READY" or "WARN" LED on for the first 15 seconds and
  LED off for another 5 seconds).

- If you push the power switch when the Green or Red LED is off, the unit goes back to countdown stage for another test.
5. Finally, the unit will show "OFF" and turn off automatically along with a sound.
6. For the successive testing, try again from No.2 to No.4.
7. Space tests at least 2 minutes apart.
After using, you can turn the device off by pressing the power switch for 2 sec.





Smart Fuel Cell Sensor


≤ ±0.005% BAC at 0.050% BAC

Detection range

0.000 ~ 0.400% BAC / 0.000 ~ 2.000mg/l BrAC

Response time

3 ~ 22 seconds

Warm up time

15 ~ 35 seconds


114 x 47 x 24mm


61.5g (84g battery included) / 2.17oz (2.96oz with batteries)

Power supply

Two 1.5V "AAA" size Alkaline Batteries

Working temp.

+5'C ~ +40'C / (41'F ~ 104'F)

Storage temp.

0'C ~ +40'C / (32'F ~ 104'F)


Every 6 months or after 500 tests




Tester, 1.5V x2, AAA alkaline batteries, 3 pcs of mouthpieces, User's manual, Carrying Pouch


1 year limited warranty

*Specifications are subject to be changed without prior notice for functional improvements


- Alcohol Tester
- 1.5V x2, AAA alkaline batteries
- 3 pcs of Mouthpieces
- Carrying Pouch
- Color unit package
- User's Manual


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