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Intact GL10 Battery-Guard Battery monitor 12 V Bluetooth support, App-enabled, Charge monitoring 15 mm x 60 mm x 45 mm | Conrad.com
Amazon.com: Renogy 500A Battery Monitor with Shunt,Compatible with 12V Lithium Sealed,Gel,Flooded Batteries+Renogy Bluetooth Module RJ12 Communication Port Compatible Rover/Wanderer/Adventurer Charge Controllers : Automotive
EJ-BM21 Smart Battery Monitor with Bluetooth SOC meter - Advanced Professional Powerful Lithium-ion Battery-LFP batteries -battery monitors manufacturer
Battery Monitor Bluetooth MICRO-10 Bluetooth 4.0 12V Car Battery Tester Car Voltmetery Monitoring Tester For Cars Motorcycle