12V Car Battery Monitor Tester BM2​​ bluetooth 4.0 Device for 6V-20V Vehicle

Feature: Receive notification of battery conditions when enter bluetooth range Check starting system and 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 device up to 31days 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 iOS & Android Specification: Color: Black System voltage: 12V Input voltage: 6V-20V Average current: 1mA Operating temperature: -40 ~ -90 Short-circuit protection: Built in Reverse connection protection: Built in bluetooth: 4.0 App keyword: BM2 bluetooth name: Battery minitor Dimension: 55x35x16mm Package Included: 1 X Car 12V Battery Tester