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The MNJ LED Digital Double Voltmeter is a compact, durable dual battery voltage monitor featuring a bright 3-digit blue LED display. Designed for 12-24V systems, it offers real-time monitoring with built-in safety protections and easy panel flush mount installation, making it an essential upgrade for cars, trucks, RVs, and marine vehicles.
| Asin | B07JJZ45DD |
| Best Sellers Rank | #110,407 in Automotive (See Top 100 in Automotive) #49 in Automotive Voltmeter Gauges |
| Brand Name | MNJ Motor |
| Color | black |
| Compatible Devices | Cars, Trucks, RVs, Marine Boats |
| Customer Reviews | 4.4 4.4 out of 5 stars (391) 4.4 out of 5 stars |
| Item Dimensions | 1.9 x 0.9 x 1.9 inches |
| Item Weight | 18.14 g |
| Manufacturer | MNJ Motor |
| Measurement Type | Voltmeter |
| Minimum Operating Voltage | 12 volts_of_direct_current |
| Number Of Items | 1 |
| Number Of Packs | 1 |
| Part Number | MNJ-DV-078R |
| Power Source | Battery Powered |
| Specification Met | CE, ETL |
| Style Name | Digital |
| Unit Count | 1 Count |
| Upc | 608613140214 |
User
Works great easy insall
Works great
User
really good product
i installed this on my boat and put a cut off switch in line so it does not run all the time but it was easy to wire and install bright as hell this blue is hard on the eyes in the dark as i go out early in the morning so that was why i put the inline switch on works great in the full sun no problems at all seeing it im very pleased with the product
User
Works as it should
Good so far. Easy viewing readout in daylight.
User
Doesn’t light up or indicate voltage with only aux power applied
Reads a little high but will perform what I needed , very bright, like the fact it included terminals, your just need a stepper bit to install , doesn’t light up or indicate voltage with only aux battery power applied
User
works great + delivered next day
no complaints here, reads one lithium and one AGM battery connected together with a duel battery relay on my Honda Pioneeer 1000 the lithium battery is draining due to many accessories and i wanted to monitor the usage before i install a solar maintainer on the roof to keep my accessories from depleting the system's backup
User
Handy little device, used properly.
One must be aware of how this unit works before ordering.It's actually based on a board intended to show voltage on one readout and current on the other.It has just three connectors. So both inputs share the same ground connector.The voltage at the top connector runs both displays. It powers a voltage regulator which is probably 5V; could be 3V.The middle connector can be connected to any voltage within the safe range of the device. Input resistance appears to be 180K on this line.Handle it well and it should last a while.
User
Bright
Nice gauge for a dual 12v to make 24 output to track both batteries
User
Super legible, 95%+ accuracy!
I tested this battery volt meter when I received it and did a side by side comparison with a high end battery voltmeter. After numerous tests, I concluded that this MNJ voltmeter has over a 95% accuracy! Hardly any issues reading volts. 10/10 will buy again for my next car project. Absolutely love how easy the screens are to read volts. I can be far from the voltmeter and still read the volts. Not too bright during night applications so if you’re driving the light isn’t bothering you, but it still is super easy to see and read at night.
User
Not accurate
Not remotely accurate for voltage readings.
Trustpilot
2 months ago
1 week ago