Features Real-time battery monitoring Stores and displays historical data Tests vehicle cranking system Records trip duration Alerts sent to mobile device Automatic synchronisation Free app for both iOS and Android App can monitor multiple devices Specifications Average Current: 1mA Input Voltage: 6 – 20V Operation Temperature: -40°C to 90°C Product Dimensions: 5.5 x 3.5 x 1.6cm Voltage Accuracy (9-16V): + / – 0.03V Short-circuit Protection: Yes Reverse Polarity Protection: Yes Bluetooth® Version: 4.0 Bluetooth® Name: Battery Monitor App Name: BM2