AL8800BT is a Bluetooth Low Energy (BLE) ICASA approved breathalyser with a fast reacting Fuel Cell Sensor used to check breath alcohol concentration quickly and accurately. AL8800 BT operates with our iSober App which is available free on both the App Store and Google Play Store. Visit our iSober App page for more info. AL8800BT provides high accuracy and a long calibration cycle and is suitable for use in the workplace and as a high-end personal breathalyser. Includes a 12 month calibration certificate. Annual calibration is recommended & AL8800BT provides a CAL reminder and lockout once per every 12 months or 1,000 tests.