MIC-VM-Blue Voltmeter (DC 12V LED Digital Display Waterproof for Boat Marine Vehicle Motorcycle Truck ATV UTV Car Camper Caravan Blue Digital Round Panel)

Good volt meter that works as it should. Easy install.

This review is ONLY for the "MICTUNING MIC-VM-Blue Voltmeter (DC 12V LED Digital Display Waterproof......." This is a general purpose voltmeter for use on vehicles that use 12VDC power systems, although it can also be used in a wide variety of other applications, whenever the actual voltage of a power system needs to be known. This product does not come with any documentation, so its specifications are not well-established. I tested it on voltages from 4VDC to 32VDC, and it worked, but I did not try operating it for very long EXCEPT within the 16V~20V range, in which I have operated it for many hours so far. I tried bringing it up from 0V until it started working at 4VDC. Note that this meter gets its operating power from the same power wiring that is is being used to measure the voltage of. Accordingly, there are only TWO electrical connections, both of them male 'spade' connectors, one is + and the other is - . The entire assembly is 'potted' so that it is waterproof. As such, there is no way to adjust the brightness or calibrate for accuracy. However, I did test it against a reliable digital voltmeter, and found that the two meters always matching within one decimal place; i.e. if one meter was reading 17.3, the other meter also read 17.3, NOT 17.2 or 17.4. The display has three digits and two decimal points; the DP's automatically position as the meter auto-ranges. As long as the measured voltage is less than 9.99 V, the DP will be in its left position, but above that the display will change to read 10.0 and above, with only one decimal place and the DP in its right position. As such, the meter's resolution is not always the same across its total usable range. The display is plenty bright, without being glaringly bright in the dark. In direct sunlight, it can become hard to make out the numbers. It may be a good idea to provide it with some kind of sun-shade if it will be used on some level surface out in the sunlight. The meter mounts into a round hole on sheet metal or other thin material. A knurled locking ring screws on from the rear to mount the meter into the hole (much like the way that a conduit fitting mounts into a hole in an electrical box). I used a large step-drill to make the round hole in the sheet metal of my snowblower's control panel. I don't recall the hole size now; it probably should be a metric size, nut I used one with steps in fractions of an inch and found a step that gave a usable hole diameter.

Works great and was easy to install

Decent quality and easy to read display. I made a custom panel to mount this in the dash of my pre-historic EZGO. Been very reliable to monitor my auxiliary battery voltage

I was having to charge my battery every time I used the mower. I decided to replace the cheap original gauge with this one and right off I realized the generator wasn't working! A repaired broken wire later and I have used the mower all season with no issues

Works Great

Good looking meter that works for me. I checked it with another meter and they agreed. Can't beat that.

I own a 1962 MGA and wanted to add a voltmeter but did not have room for the normal automotive (2" Dia) size. PROS: Very accurate. Easy to install. CONS: Lasted only TWO years (less than 1000 miles of intermittent use). Light is way too bright at night but hard to read in bright daylight. COMMENTS-RECOMMENDATIONS: All in all I was satisfied with this voltmeter because it was compact and very accurate. I planned to try some shaded packaging tape to see if I could reduce the nighttime brightness. However, the voltmeter quit working recently after only two years of use. I cannot recommend this product due to its short lifespan. Also, I need something that is not so bright.

Just what I needed to be able to check the voltage. Easy to install, easy to read and well light numbers in nice blue. Very happy with it! Al C.

Mounted on a motorcycle and works as intended. I would give a 5 star if it had a night setting for LED brightness. The LEDS are very bright at night.

This looks great in the picture, but is difficult if not impossible to read if used in an outdoor environment, like on a boat dash board, or car. I have it mounted on a battery box inside a trailer, but when the sun shines in through the door, I can't read it.

It was smaller than expected - though the dimensions were listed - fits nicely and is incredibly useful

numbers are hard to read