Product Description - Easily plugs into vehicles cigarette lighter or power receptacle to monitor battery and charging system voltage - Designed for 12-volt negative ground systems - LCD displays measured voltage with a bar graph to indicate battery charge level - Color-coded LEDs quickly identify batterys charge status - Head pivots for easy viewing, angle adjustment
Very good product. It was what I was looking for.August 31, 2010 Roger(Miami, Fl) Very good product. It provides a quick view at the situation of your charging system.
As AdvertisedAugust 25, 2010 Opie I wanted to monitor the charging system in my car. This unit does just what it was advertised to do.
Equus 3721 Battery Monitor - Works FineAugust 24, 2010 dhinman Works as intended. Plug it in and you know your voltage. I use it on a boat to monitor the voltage in my batteries while sitting at anchor. I would recommend to anyone.
Good accessory for PriusAugust 19, 2010 JED Because this device has 0.01 volt resolution, you can better detect a weakening battery when switching on small loads, with the Prius hybrid system OFF. (The Prius' built-in navigation display voltmeter has only 0.1 volt resolution.) A failed 12 volt auxiliary battery in a Prius will prevent you from being able to start the hybrid system. I have tested my friends' cars lately and detected a weak battery before they were stranded.
Quick and easy to use.August 12, 2010 Benton Wong It is smart to give warning lights as it can differentia between battery and alternator voltage.
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