Review on 📊 High-Quality SMAKN 2-Wire Green LED Panel Digital Display Voltmeter for DC Voltage Range 4.0-30V by Daniel Jackson

Really not very good. I was trying to use this on an electric machine that I was running on a Ryobi 18v drill battery. Two of them exploded a few seconds after switching on. After the first one, I put a built-in fuse in front of it in the circuit. I padded it appropriately, but it exploded again. There is no such power either. Bought third party. I just wanted to disable a button that only lights up when the button is pressed. Expected more of this as it was advertised up to 40V. It was cheap and I didn't mind spending the money again to buy a new one but after 3 and my wiring it was right and proper. I didn't return the failed ones because I wanted to confirm it wasn't my fault. But seeing how quickly it will blow even with a 2.5A fuse (and the fuse didn't blow, just the LCD screen).