BM2 Bluetooth 4.0 Battery Monitor Feature: Support: All 12V Car Battery Available:Android 4.3 and Later IOS: IOS 7.1 and Later iPhone: 4s and Later iPad: iPad 3 and Later Language:Multi Language Connection method:Bluetooth 4.0 App Name: BM2, please scan machine backup or user manual scan code, download software. BM2 Bluetooth 4.0 Battery Monitor Advanced Features: Installed in the car battery Real-time Monitoring Through Mobile Phone App. List the time of each drivin Compatible with all 12-volt vehicle batteries Check charging and cranking(alternator) systems Engine starting detect automatically Receive notification of battery conditions when enter Bluetooth range Show voltage & charge info. when user is close to the vehicle,no need open app Automatic synchronization when enter Bluetooth range Data stored in battery monitor up to 35 days if out of sync Alert mobile phone if some data abnormal Check starting(cranking) system when each time engine started Check starting voltage each hundredth of a second when engine is starting Review historical data graphically Protection of short-circuit and reverse connection BM2 Bluetooth 4.0 Battery Monitor NOTE: 1. Alert users if charge is low 2. Review charge history in graph mode 3. Show the state of charge of battery in real time 4. Near-Filed Perception to get notification automatically BM2 Bluetooth 4.0 Battery Monitor Package List: BM2 Battery detector X1 User manual X1 BM2 Bluetooth 4.0 Battery Monitor Phone Screenshoot: 1.Check battery health and starting voltage each hundredth of a second when engine is starting 2. Check starting cranking system voltage and review historical data graphicall. 3. Check batteries charging system voltage when engine work low and high speed, and feedback to you. 4. monitor vehicle battery work histroy and feedback trip infiormation to you any time. FAQ before order: Q1: How to choose a better car battery tester? A1: It is accuracy. Compared to other tester, the test results of BM2 Battery Monitor are the same(tolerance 15) when testing at the same time. More Accurate Q2: This BM2 battery monitor can work cranking test and charging test? A2: yes friend, it support battery voltage monitor in real time, battery cranking test, charging test. Q3: What software use for BM2 battery monitor? A3:scan code from user manual, or search BM2 from Googly play and IOS market, you also can contact with me, i will send software via email. Q4: What language BM2 Battery Monitor including? A4: Multi Language For your Android and IOS Phone Q5: Why should i order this battery monitor for phone? A4: It is the first car battery monitor in real time on your phone and show battery voltage graph, it better than handheld battery tester.