BM2 Bluetooth 4.0 Battery Monitor Feature:<br> Support: All 12V Car Battery<br> Available:for Android 4.3 and Later<br> for IOS: IOS 7.1 and Later<br> for : 4s and Later<br><br>for : 3 and Later<br> Language:Multi Language<br> Connection method:Bluetooth 4.0<br> App Name: BM2, please scan machine backup or user manual scan code, download software.<br> BM2 Bluetooth 4.0 Battery Monitor Advanced<br> BM2 Bluetooth 4.0 Battery Monitor Advanced Features:<br> Installed in the car battery Real-time Monitoring Through Mobile Phone App.<br> List the time of each drivin<br> Compatible with all 12-volt vehicle batteries<br> Check charging and cranking(alternator) systems<br> Engine starting detect automatically<br> Receive notification of battery conditions when enter Bluetooth range<br> Show voltage & charge . when user is close to the vehicle,no need open app<br> Automatic synchronization when enter Bluetooth range<br> Data stored in battery monitor up to 35 days if out of sync<br> Alert mobile phone if some data abnormal<br> Check starting(cranking) system when each time engine started<br> Check starting voltage each hundredth of a second when engine is starting<br> Review historical data graphically<br> Protection of short-circuit and reverse connection<br> BM2 Bluetooth 4.0 Battery Monitor NOTE:<br> 1. Alert users if charge is low<br> 2. Review charge history in graph mode<br> 3. Show the state of charge of battery in real time<br> 4. Near-Filed Perception to get notification automatically<br> Colour:black<br> Material:ABS<br><br>Package Contents:<br> 1 x BM2 Battery detector<br><br>Only the above package content, other products are not included.<br> Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.