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Equus 3721 Battery and Charging System Monitor | 
| Brand: Equus
Category: Automotive Parts and Accessories
List Price: $25.57
Buy New: $12.26
as of 11/26/2009 16:40 CST details
You Save: $13.31 (52%)
New (6) from $12.26
Seller: Amazon.com
Rating:  34 reviews
Sales Rank: 157
Media: Misc.
Shipping Weight (lbs): 1
Dimensions (in): 10 x 1 x 6.5
MPN: 3721
Model: 3721
UPC: 042173037216
EAN: 0042173037216
ASIN: B000EVWDU0
Shipping: Eligible for FREE Super Saver Shipping
Availability: Usually ships in 24 hours
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| Features:
| • | 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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| Accessories:
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| Editorial Reviews:
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
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| Customer Reviews:
Showing reviews 1-5 of 34
 Battery and Voltage meter October 26, 2009
Gregory G. Gay (Richmond, VA USA)
1 out of 1 found this review helpful
I have found this meter to be extremely helpful for the non mechanic. I was able to determine my battery was at fault not the alternator.
 Resonably priced Battery charging system monitor October 25, 2009
Gert U. Gehlhaar (Lompoc, CA)
1 out of 1 found this review helpful
I purchased two Equus 3721 Battery and Charging System Monitor for my 1984 VW Vanagon Westfalia Camper that has dual batteries. I wanted to beable to monitor both batteries and make sure that the engine starting battery remains charged at all times to start the motor. The second battery runs all the internal camper electrics and I wanted to beable monitor its condition at all times. This unit does the trick just fine.
Equus 3721 Battery and Charging System Monitor September 25, 2009
Jim Hudspeth (Olalla, WA USA)
1 out of 1 found this review helpful
This item is well built and performs as advertised.
I have several of these devices by various manufacturers. This one is easily my favorite.
Works as advertised, versatile September 12, 2009
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.
Terrific August 26, 2009
CMA (Central NJ)
2 out of 2 found this review helpful
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.
Showing reviews 1-5 of 34
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