6V 12V 24V Bluetooth Battery Monitor BM7Work for All Lead-Acid & Lithium Battery with Charging, Cranking System Test & Auto Alarm Waterproof Voltmeter for Cars, Vans, Trucks, Motorcycles, Boats

High ACCURANT Readings: The BM7 is equipped with a built-in smart chip for precise readings with an accuracy of over 99.6 %. The connector is designed with red and black rubber grips for easy placement on the battery terminals and allows for more accurate readings as the monitoring time increases.
Reliable Safety Measures: The BM7 has built-in reverse connection and short-circuit protection to ensure user safety. The fireproof ABS shell and IP67 waterproof rating increase durability. In addition to these safety features, it also has an excellent auto alarm function. When the battery malfunctions, voltage or power is abnormal, it will notify you via APP, relieving you from worries. Additionally, the power consumption is almost negligible at 1mA, No need to worry about the BM7 draining the battery by being connected to it all the time.
EASY TO USE: Install once to permanently fix onto the battery, no need to re-install. Access batterys health data directly from your phone and enjoy real-time monitoring by opening the app. Additionally, the power consumption is almost negligible at 1mA, so you don't have to worry about the BM7 draining the battery by being connected to it all the time (the App can monitor up to 4 devices at the same time). With Bluetooth 5.3, the APP automatically connects to the monitor within 10 meters, allowing you to comfortably monitor real-time battery data for proactive intervention.