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This battery and charging system monitor displays the condition of your battery and charging system instantly. It protects the engine computer and 12-volt accessories from damaging surges when jump starting or recharging. You can easily plug into the vehicle's cigarette lighter or power receptacle to monitor battery and charging system voltage. It has an LCD screen which displays the measured voltage with a bar graph to indicate battery charge level and it also has color-coded LEDs which quickly identify the battery's charge status. The head pivots for easy viewing and angle adjustment.
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Technical Details
- Displays the condition of the battery and charging system- Designed for 12-volt negative ground systems
- Protects the engine computer and 12-volt accessories from surges
- Easily plugs into a cigarette lighter or power receptacle
- Head pivots for easy viewing and angle adjustment
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By Jim Hudspeth (Olalla, WA USA)
This item is well built and performs as advertised.
I have several of these devices by various manufacturers. This one is easily my favorite.
By Johnny Elizondo Ortiz (Albuquerque, NM)
Works as described, it does not fall off of the power socket which worried me before purchasing it. As other reviewer mentioned the picture in amazon is not the actual product, the one I received looks better. One of the pros of the Equus 3721 is that you can pass it to everyone in trouble in order to instantly check the battery and/or charging system of other car.
I just wish it had blue backlight instead of green.
By CMA (Central NJ)
Terrific little instrument. Worked great straight out of the box & proved to my installer that the battery system in my Van RV that was faulty. He hadn't installed any meters for the battery.
By A. Parsons (Toledo, Ohio area)
A great little unit. Monitors the battery and the charging system. See the voltage or quickly scan the conditions via lights or a bar graph. Gave it four stars since nothing is perfect. All references to this unit on the web state that it is 10 x 6 x 1 inches in size (monstrous) but in fact it is rather compact at 5.5 inches long by 2.5 inches wide by 1 inch thick. It hinges in the middle so you can position it for any vehicle. Highly recommended.
By RICK (INDIANA)
NICE TOOL. EASY TO READ IN DAYLIGHT LOOKING THREW THE WINDOW AND AT NIGHT. SEEMS ACCURATE AND SWIVEL FEATURE IS ALSO NICE.
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