Introducing the brand new Sobermate S5 - Your mate in keeping you in check. Unlike other personal breathalysers, the Sobermate S5 only needs calibration every 12 months or 500 tests, saving you valuable time and money! Additionally, the S5 can store the last 10 tests in its internal memory, so you can check your past BAC history directly from the device. Other handy features include low battery warning and auto power off so you can keep its battery life in check. Utilising a fuel cell sensor, you can rest assured that our product will provide you with accurate readings time and time again - just remember to calibrate this wonderful little device. Thankfully, the S5 has an alert feature to remind you when calibration is due, so you will never miss it. The Sobermate S5 provides alcohol-specific readings, all the while being sleek, portable, and affordable. Specifications BAC Range 0.000% – 0.500%BAC Sensor Type Fuel Cell Accuracy ±0.005%BAC at 0.100%BAC Warm Up Time 15 seconds Response Time Within 7 seconds Recycle Time Within 10 seconds Working Temperature 0 – 40°C Power Supply 2 x AAA Batteries (Alkaline Only) Mouthpieces 5 mouthpieces supplied Result Reading 0.000% to 0.400%BAC Certification Australian Standard AS3547 Calibration Frequency 500 tests or every 12 months (whichever comes first) Display Back-lit LCD Features 3 decimal place reading, flow control, auto power off, test counter, days left until calibration Includes User manual, mouthpieces, batteries Product Weight 85g including batteries Dimensions H: 105mm, W: 47mm, D: 17mm Warranty 1 year