BATTERY MONITORING TESTER: This onboard battery tester features a convenient and intelligent design that supports BM2 4.0 monitoring, allowing you to monitor up to four devices simultaneously.
ALERT FUNCTION: This battery monitor tester is equipped with a smart data connection function that sends battery status notifications directly to your phone's notification bar within range.
PORTABLE DESIGN: This tester features a user friendly operation mode, requires no password, and supports direct connection to the battery, providing convenience and worry use.
COMPREHENSIVE BATTERY DIAGNOSTICS: This multi functional intelligent battery monitoring tester provides a comprehensive solution for monitoring and shunting batteries and other 12V automotive batteries.
VERSATILE COMPATIBILITY: This multifunctional battery monitoring tester is designed for all 12V automotive batteries and automatically detects voltage, power, starting power, and engine start.