IT-MR997 Breath Alcohol Tester

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Portable Alcohol Detector with AAA Battery Operation

The IT-MR997 Breath Alcohol Tester is a compact alcohol detection device designed for quick and convenient breath alcohol screening. Featuring a clear digital display, portable design, and a measurement range of 0–200mg/100mL, it is suitable for personal use, workplace safety checks, transportation, and general alcohol testing applications. Powered by AAA batteries, the device offers simple operation and reliable performance for everyday use.

Usage method & Function definition

When using for the first time, please prepare three 1.5V (AAA) dry batteries, remove the battery cover, install the battery cover, and then use the battery cover.
Press the power button.
“Preheat” 1-10 seconds, boot into the preheat countdown
10 seconds, please wait for the preheat time.
After the preheating is completed, it automatically enters the blow detection countdown for 6 seconds. Wait for test results to be displayed.
Set display unit: After completing operation 2.3.4, if the display result appears within 5 seconds, double-click the button to switch to the next measurement display unit (such as% BAC – US g/1- European mg/l BrAC – Japanese mg/100ml China).
Laser light switch: In the “preheating” stage of the startup state, press and hold the button for 3 seconds, and the voice prompt will be “Laser light on”,
*, then click the button
to turn off the laser light
Look out
The first time the breathalyzer is taken out of the package, or when it is not used for a long time, a large amount of gas and other impurities can attach to the sensor. In this case, you need to press the power button several times to clean the breathalyzer by preheating it.

Measuring method: preheat

Press and hold the power button for 2 seconds. After the drip* sound, the tester display will start.
“Preheat” digital display, the screen countdown 10 seconds to start, countdown 0 preheat completed.