Digital breath alcohol tester:
1. Digital display results (% BAC / g/l)
2. Red Backlight(only for GHX-642S)
3. Alert level calibrated
4. Quick response and resume
5. Auto power ofF

Specifications:
1. Sensor: advanced semiconductor oxide alcohol sensor
2. Detect range: 0.00-0.19% BAC / 0.0-1.9 g/l
3. Warm-up time: within 10 seconds
4. Respond time: within 5 seconds
5. Operating temperature range: 10 - 40 
6. Environmental temperature: 40%-90%
7. Power input: use 2x "AAA" alkaline batteries (not included)
8. Unit size: 102x34x18 mm

9.You can tie the plastic pole with the hand harness(included)

Packing:
Inner packing: gift box
QTY: 100 PCS
G.W.: 4.6 KGS
N.W.: 4.0 KGS
MEAS: 41x26x27 CM