Voltage Meter Analyzer Bluetooth 4.0 Easy To Operate Auto Battery Monitor for Car Feature:1. Battery Monitor: The battery monitor will provide a quick reading to determine if a vehicle battery needs a jump or replacing and also the alternator output status.2. Safe and Reliable: Battery load tester let you know everything about the battery: voltage, charge, cranking power, engine starting detect automatically, etc.3. Practical: Automatic engine start detection. If abnormal data is detected, alert the phone. Short circuit and reverse connection protection. Automatically synchronize data within Bluetooth range.4. Easy to Operate: Please scan machine backup or user manual scan code to download software. Connecting Bluetooth and open app, no code, you can know battery condition.5. Application: Supports for iOS and for Android smartphones that support Bluetooth 4.0, supports for motorcycles, cars, RV, SUV, MPV, light trucks, trucks and boats with 12V battery.Specification:Item Type:AutoBatteryMonitorMaterial: ABS, metalModel: BM2Fireproof Wire: High temperature resistant (-40+110'C)Average Power Consumption: 1.5MAOperating Temperature: -40~+90'CInput Voltage: 6V-20V Accuracy: Soil 0.03VMonitoring: Voltage, start system, powertrain, mileageInput Voltage: 12VVoltage Range: 6-20V Function:Receive battery condition notifications within Bluetooth range. Automatically check the vehicle starting system when the engine is started.Check the charging system (alternator)List the time of each drive.If abnormal data is detected, alert the phone.Short circuit and reverse connection protection.If the data is out of sync, it can be stored in the battery monitor for up to 35 days.Automatic synchronization within Bluetooth range.Compatible with all 12V vehicle batteries.Display historical data graphically.Automatic engine start detection.Free app for iOS and for Android.Mobile phone support: All for iOS and for Android smartphones support Bluetooth 4.0for iOS (for iPhone 4S, 5, 5C, 5S and later; for IOS tablet 2, for IOS tablet Air, for IOS tablet mini, for IOS tablet mini2 and higher)for Android: At least for Android 4.3 (Bluetooth 4.0 support phones)Vehicle coverageAll 12V batteries, including motorcycles, cars, RV, SUV, MPV, light trucks, trucks and boats. Including lead acid, AGM, GEL, EPB, lithium metal batteries.Package List:1 x AutoBatteryMonitor1 x ManualNote:Please scan machine backup or user manual scan code to download software. Connecting Bluetooth and open app, no code, you can know battery or battery load's condition and check charging and starting system, list time of each driving.