DROK12 Volt Digital Voltmeter, 0.56" DC 3-30V 12v Voltage r Gauge Green Bright LED Display Two Wires Volt Meter Detector for Solar Battery Monitor Checker Car Motor Panel Mount

Lo compré para medir el voltaje del acumulador secundario de mi camioneta Van en la parte posterior junto con otros medidores digitales. Su marcación es correcta, muy legible a distancia. Personalmente veo el aparato muy pequeño pero como los números se ven muy bien, con eso debe bastar, es únicamente una apreciación personal. Su color verde me hudtó, pero mi color favorito es el azul aguamarina. Ojalá que también hubiera medidores en ese color, con gusto los compraría.Ya no tendré que ir hasta la cabina de conducción y encender el switch de ignición para checar el voltaje de la batería principal para imaginar el voltaje de la secundaria. Vale la pena obtener mediciones independientes.

Looks great, install was fairly simple. Certainly no challenge for someone who has done a similar project before or has a diy inclination. Highly recommend it if you run your accessories on battery power frequently and don't like risking draining your battery.

This was the perfect meter for a solar system's batteries where the owner did not want to invest in a fancier and much more expensive meter. It was super easy to install, but I added a 1/2 amp inline fuse on the positive lead so that if later the home owner or someone else messed with the batteries or the meter, the meter would be protected by the small fuse. Perhaps the DROK people could recommend this in any shipping paperwork.The digital read-out is nice and large, bright, and easy to see from a distance.The packaging on the shipping was perfect and it arrived on good shape and on time. Will get another one of these when I install a simple, small off-grid system.

This meter is awesome to fill the broken meter on my carbon pile. It moves with the voltage drop instantly and gives accurate info perfect color and brightness

I bought this for install in my tent trailer so monitor battery power when we camp without electrical hookups. I installed it right inside the front door and tapped into the 12V power wire to the porch light switch. I installed a momentary switch from Radio Shack between the power wire and the voltmeter, and then ran the ground from the voltmeter to the trailer frame. It works great, looks awesome, and now allows me to instantly check battery levels without crawling under the front bunk with a portable meter, removing the battery cover, banging my head on the bunk once or twice, and trying to muffle curse words so my kids don't hear me. Excellent product that works great!LATE EDIT :So far it's worked beautifully through several camping trips. Being able to monitor the battery level while staying inside is awesome and tracking how fast my 100w Renogy solar panel (also a HIGHLY recommended Amazon purchase!) recharges the battery through the day is great. I found on a popup trailer forum that many voltmeters such as this have an adjustment dial in the back. This read just a little bit high compared to my handheld unit at the battery. I removed it, adjusted the tiny set screw on the back, and now it's absolutely perfect. Highly recommend this product!