Digital Alcohol Breath Tester / Keychain / breathalyzer

Alcohol Test
1. Press and hold the POWER button,the green LED will keep lighting for READY in about 10 seconds ,the unit enters intro the testing status.
2.Wait about 10 seconds ,then exhale into the Exhale Pipe and look into the test result (user alcohol level:BAC*) as follows: 
Type A
Green LED keeps lighting:Safety---under 0.02% BNC (or 0.1mg/L BRAC)
Yellow LED lights: Caution----0.02% BAC (or 0.1 mg/L BRAC) to 0.05% Bac (or 0.25mg/L BRAC)
RED & YELLOW LEDS light:Danger---over 0.05% BAC (or 0.25mg/L BRAC) 
Type B
Green LED keeps Lighting:Safety---under 0.05% BAC (or 0.25mg/L BRAC)
Yellow LED lights:Caution-----0.05% BAC (or 0.25mg/L BRAC) to 0.08% BAC (or 0.40mg/L BRAC)
Red & Yellow LEDs Light:Danger----over 0.08% BAC (or 0.40mg/L BRAC)
BAC:Blood alcohol concentration 
Torch Function:
Set the torch swith to <ON> position to turn on the torch .Please do not use the alcohol test function in theis status. 

Count-up Timer
1.Press the START/STOP button to start the count-up timer when the setting is 0:00
2.Press the START/STOP button to start the count-up timer
3.Repeatedly press the START/STOP button to switch the count-up timer "start" or "stop"
4.To reset the count-up timer to 0:00 press the HR and MIN buttons at the same time. 
Countdown Timer
1.Press HR or MIN buttons to set the countdown HOUR or MINUTE
2.Press the START/STOP button to start the countdown timer
3.Press the START/STOP button again to stop the countdown timer.
4.Repeatedly press the START/STOP button to switch the countdown timer star or stop.
5.A 2-SECOND PRE-WARNING SIGNAL WILL BE GIVEN AT THE LAST 5 AND 10 MINUTES.
6.The alarm of the countdown timer lasts 60 seconds. Press the HR and MIN bUTTONS AT THE SAME TIME CAN STOP THE ALARM EARLIER.
7.To reset the countdown timer to 0:00. press the HR and MIN buttons at the same time. 

Package:
1 x Alcohol Tester 
1 x English Instruction Manual