General
Blow with a long, steady, continuous breath for 5-7 seconds. Some models may continue to beep while you're blowing into it. The reading is only read...
Wed, 7 Jul, 2021 at 3:02 PM
I keep getting 0 readings on my breathalyser
The typical situation is - you've had a beer or two, waited 20 minutes, then test yourself and ge...
Mon, 14 Jun, 2021 at 6:12 PM
The main difference between a fuel cell and a semiconductor sensor is that the fuel cell is ethanol specific. As the semiconductor is not ethanol specific...
Wed, 7 Jul, 2021 at 3:10 PM
We strongly recommend alkaline batteries to be used in the breathalysers. Rechargeable lithium batteries can also be used. All batteries must be no...
Mon, 4 Mar, 2024 at 1:27 PM
Regarding the readings, there are so many factors that can have effects on the readings. The only reliable way to test a breathalyzer's accuracy is thr...
Fri, 18 Jul, 2025 at 3:57 PM
There are a few reasons that the breathalyser is not switching on Weak/Flat batteries. Try replacing with a new set of Alkaline or Lithium batteries. Th...
Mon, 4 Mar, 2024 at 11:04 AM
You might be holding the power button down for too long while doing the test. Blow into unit then 1. Press the power button once 2. Then let go of the bu...
Wed, 7 Jul, 2021 at 2:57 PM
For all personal handheld units:
While the unit is turned off, press the power button and hold it without letting go.
The screen will come on ...
Mon, 14 Jun, 2021 at 6:15 PM
If the breathalyser start up or countdown sequence time is taking longer than usual, it could be because: Possible Cause #1 Battery power is low Solutio...
Wed, 4 Jun, 2025 at 3:41 PM
Differences between Sobermate S2, S3 and S5 breathalysers available from REPCO Below is a comparison table of the specifications for the Sobermate breatha...
Mon, 12 Jul, 2021 at 5:07 PM