This is a dual screen display breath alcohol tester of alcohol testing, temperature measuring, timing 
and alarm time functions.It's a practical gadget for daily life using.

Features:
Dual LCD screen display:Clock LCD and Alcohol tester LCD
Breath alcohol concentration testing
Can measure atmospheric temperature around
Count-down timing for kitchen using
Clock and alarm time function
Quick response and resume capacity
Threaded by strap in order to be more convenient carrying
Auto power off for saving batery
Buttons: POWER, MODE, SET, ADJ

Functions:
Alcohol test
Press the "POWER" button once, the sceen will display 10 or 15 seconds count down indicating the tester enters into 
"warm up" mode.When the "blow" symbol displayed and 10 seconds count down started, indicating the tester is 
ready to test.Exhale pneuma into breath inhaler for 3-5 seconds, then read the result from the alcohol tester LCD.
The "Caution" symbol will be displayed if the alcohol concentration is the level between 0.02%-0.05% BAC or 0.1mg/L-0.25mg/L BRAC
The "Danger" symbol will be displayed if the alcohol concentration is the level over 0.05% BAC

Clock real time setting
In real time mode, press "ADJ" to select 12 or 24 hour format.Long press "SET" to set hour and minute, and press "ADJ" to adjust.
Press "MODE" to confirm

Alarm time
In real time mode, press "MODE" once. Long press "SET" to set hour and minute, and press "ADJ" to adjust.
Press "MODE" to confirm

Temperature measuring:
In real time mode, press "MODE" twice to display measuring temperature and press "ADJ" to convert temperature unit 
between °C and °F

Count down timing
In real time mode, press "MODE" three times to enter timer mode.Long press "SET" to set limiting hours and minutes in advance
After setting, press "ADJ" to start counting down.It can preset time between 1min to 23hrs 59mins.

Specification:
Alcohol test range:0-0.19