Portable Handheld Digital LCD Display Police Breath Alcohol Tester Breathalyzer

Specifications:
Nano-semiconductor alcohol sensor.
One button operating.
Auto shut off, power saving.
Digital orange backlight LCD display.
Quick response and recovery function.
Automatic sound alarm.
Smart MCU control.
Item Name: Alcohol Tester
Material: Plastic
Sensor: Advanced Semiconductor Oxide Alcohol Sensor
Range: 0.00-019% BAC(0.0-1.9g/L)
Accuracy: -0.01~+0.02%BAC(at 0.50%BAC)
Power Input: 2 x 1.5V AAA Alkaline Batteries (Not Included)
Response Time: