Bluetooth 4.0 Battery Monitor  BM2

● Receive notification of battery conditions when enter
 Bluetooth range

● Check vehicle cranking system automatically while
 engine is starting

● Check charging system (alternator)
● List the time of each driving
● Alert mobile phone if some data abnormal
● Short-circuit and reverse connection protection
● Data stored in battery monitor up to 35 days if out of sync
● Automatic synchronization when enter Bluetooth range
● Compatible with all 12-volt vehicle batteries 
● Review historical data graphically 
● Engine starting detect automatically
● Free app for both iOS & Android


All 12V car battery

APP Name

Battery Monitor BM2



Android: 4.3 and later

iPhone: 4S and later

iPad: iPad 3 and later

Advanced Feature

Check charging and cranking(alternator) systems

Engine starting detect automatically

Show voltage & charge information when user is close to the vehicle, no need run app

Check starting(cranking) system when each time engine started

Check starting voltage each hundredth of a second when engine is starting

Protection of short-circuit and reverse connection

When close to the car, mobile will receive all these information automatically

Support breakpoint resume

Basic Feature

Alert users if charge is low

Review charge history in graph mode

Show the state of charge of battery in real time

Near-filed perception to get notification automatically

2015 Shenzhen Leagend Optoelectronics Co., Ltd

All rights reserved, 粤ICP备07024499号

Street Address: Floor 4,Block 3,DaCheng Industrial Park,No.357 Jihua Street,Longgang Dist,Shenzhen,P.R.China