🔴 MGI SpeedWare 2-in-1 Voltmeter/Ammeter 12vDC: LED Digital Display (Blue) - Enhanced Productivity and Precision Review

Works great but I was hoping to use it in a model train transformer. If you switch directions, it will only read in one direction.

I had to add LED dimming, too bright, like a flashlight. In addition, it is easy to set up and use, if it were darker, the power consumption would also be lower, it consumes about 0.5W, can easily consume 0.1W.

Installed on the boat in my cabin so I can see what's going on with my DC and usage. At night on the islands I hate going into the cockpit to look at the panel. This little device works great and is accurate. I checked my expensive Victron and same numbers. The numbers are bright and easy to see and easy to install. I never use more than 10 amps at a time so that made sense.

Use this dash mount product to monitor my van's battery voltage as well as amp pickup from any/any devices plugged into my multi-port cigarette lighter. I connected and installed this product myself. Used JST connectors behind the dash for easy disconnect and used a dremel to create an almost perfect circle for mounting the voltammeter, slightly covering the flange. The allowable error of the circumferential width is about 4mm covered by the flange.