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The Compass AlcoZero4 breathalyser is a device for an indicative determination of blood alcohol content via a breath test, and it comes in a practical black case. It is equipped with an efficient electrochemical sensor, which guarantees a very fast warm-up process (after just 5 seconds), a quick response time and accurate, more stable measurement results. It is fitted with a clear display and signal LEDs. It works with a measurement range of 0–4‰ blood alcohol and is powered by two 1.5V AAA batteries. The device is also equipped with a self-diagnostic system that evaluates various conditions, such as ambient temperature, battery status or the need to calibrate the breathalyser.


Technical Specifications:
Dimensions: 111.5 × 45 × 19.8mm
Accuracy: ±10%
Measuring range: 0.0–4.0‰
Warm-up time: 5–35s
Response time: 3–22s
Weight: 53.8g (75.8g with batteries)
Batteries: 2× 1.5V AAA alkaline (included)
Operating temperature: 5–40°C
Storage temperature: 0–40°C
Calibration: Every 6 months or 500 tests
Please note:
To calibrate the device, you need to state the breathalyser model: CA 35FS
Compass CZ s.r.o., Pražská 17, 250 81 Nehvizdy, CZ, [email protected]
Compass CZ s.r.o., Pražská 17 250 81 Nehvizdy, [email protected], +420 326 702 532
Specifications can be changed without notice. Images are for illustrative purposes only.