Review on ⚡️ MICTUNING MIC-DV-077 LED Digital Panel Double Voltmeter with Rocker Switch Style, Blue Voltage Monitor for Car Pickup RV Truck Dual Battery Pack by Simo Ramsey

arrived quickly. well packed. I also installed a dual battery kit in a UTV. Just made a wiring harness, hooked it up to the batteries and it works great. You can easily see each battery's voltage in daylight, and it looks great both day and night. Happy with the purchase.Edit: The counter is set to 10 days. It consumes electricity and drains the battery over time if left uncharged. To solve this problem, set the power switch to cut off the power from the main cable +. When installed in a regularly used vehicle, you may not notice a constant current draw, but when installed in a vehicle that has been stationary for a period of time, at current measured usage rates, this cell will completely discharge your battery after 10 days of use. Measuring actual power consumption was my concern after realizing it didn't have an on/off switch. This item would be a more complete kit if it included the parts to build the wiring harness and if the gauge was an actual rocker switch that you could use to turn it off. I'm still giving it 5 stars because if you're into something like this, you probably already know how to make a wire harness, and you probably already know that if you apply DC voltage to a battery, you'll end up with a dead battery over time invest . The meter itself generally works very well.