Non-contact breathalyzer portable professional breathalyzer LEDOOTDTYechs: a non-contact breathalyzer made of keychain, which is good to hang in the car. Portable breathalyzer testers are a great tool to help estimate breath alcohol levels for employers medication tests and more. Keep yourself and others safe on and off the road. With 3 different backlight colors, knowing the test result at a glance. Highly accurate with digital display. It's incredibly easy to use! Great for wedding, parties, feast, or other social activities to ensure a safe ride after drinking. Specification: Material: ABS Measurement Rate: 109x43x1 8mm/4.29x1.69x0.71in Backlight: Orange, Green, Red Accuracy: 0.01% BAC and 0.01mg/l Warm-up Time: Less than 10 seconds Response Time: Less than 5 seconds Test Range: 0.00-0.19% BAC and 0.0-0.95mg/l BRACTworking Ambient Temperature: 10-40 degrees CelsiusWorking Environment Humidity: 40%-90% Power: 2 x AAA Batteries (Not Included)Package Included: 1x Keychain BreathalyzerNote: Please allow 1-3cm error due to manual measurement. Pls make sure you don't mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.