Digital Display Blow-type High-precision Alcohol Tester

1. Detection method: semiconductor gas sensor
2. Breath alcohol concentration measurement range: 0-200mg/100mL
3. Voltage: 4.5V
4. Current: 120mA
5. Battery: 3 AA batteries (batteries are not included in delivery)
6. Operating temperature range: -5 to 45 degrees Celsius
7. Storage temperature range: -20 to 50 degrees Celsius
8. Product size: nozzle unfolded about 108 x 66 x 23.1mm, nozzle stored about 99 x 48 x 23.1mm
9. Product weight: about 45g

How to use:
1. When using for the first time, please prepare 3 AA dry batteries, remove the battery cover, and install the battery cover before use.
2. Press the power button.
3. “Preheat” for 1-10 seconds, turn on the machine to enter the preheating countdown for 10 seconds, please wait for the preheating time.
4. After preheating is completed, the countdown to the blow test will automatically start for 10 seconds. Wait for the test results to be displayed.
5. Set the display unit: After completing 2.3.4., within 15 seconds after the display result appears, double-click the button to switch to the next measurement display unit.

Notes:
When the alcohol tester is taken out of the package for the first time or not used for a long time, a large amount of gas and other impurities will adhere to the sensor. In this case, you need to press the power button several times to clean the alcohol tester through preheating.