Seller notes

Bluetooth Battery Monitor When you need a battery monitor but don't have space for the display or routing thecables would be a nightmare, there is now a solution. The BM-1(BT) will monitor yourboat or caravan's lead-acid batteries and transmit the data directly to your mobile phone,or tablet, wirelessly by bluetooth. A simple Android app, freely available from the nasamarine.com website or Google PlayStore, (requires Android V4.3 or later) shows your service battery voltage, current flowingin or...

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