Model: AL-C9 Material: ABS Sensor: Semiconductor (Battery: 200 mAh Rechargeable Lithium Battery Blowing Time: 5 seconds (breath flow: >20L/min) Working temperature: -5°C ~ 45°C (27°F~113°F) /Measurement Range: 0.000%BAC~0.1900 %BAC Working Time: About 200 Times Test Display: Regular screen Size: 90 x 25 x 26 mm Weight: About 22g