Review on 📊 DROK 180038 Digital Voltage and Temperature Monitor: Car Motorcycle Battery Voltmeter Thermometer Detector by June Reeves

My alternator is broken and the first thing I knew about it was when the charging system light came on. Glad I was close to my house! However, it took me a while to diagnose the faulty alternator (it has 3 circuits so I didn't notice until after the last circuit failed). This device is very light and easy to use. My only comment is that with the car running the volts shown are not the actual load as the battery is under load (this is normal with any voltmeter, not this model). If the alternator is running it should definitely be above 12 volts which I will use as a warning in the future.