Review on 💧 Waterproof DC 12V Car Digital Voltmeter Gauge with LED Display - Blue by Sri Mims

Digits are clear and bright, maybe too bright for night time. I put a piece of 20% tint film on the display and now its brightness at night matches the brightness of my stereo display. The blue color goes very well with the colors of my stereo and dashboard. The refresh rate is just right, not too fast to be distracting while driving and fast enough to be on time. The refresh rate is probably 1-2 per second. A comparison between this device and my expensive DMM shows that their voltages match very well: 12.86 V on my DMM corresponds to this device's reading of 12.9 V./4 in. I drilled a 3/16" hole to run the wire through the dash mount. The double sided tape provided is nice and sticky and holds the display very well. A very good product at a very good price.