I read a review where the author of the review received a RioRand LCD panel digital voltmeter and found that his readings were inaccurate compared to his Fluke meter. The first thing I did when I got mine was test it with my meter. While not as high quality as the Fluke, it works well and I found that the two devices had almost identical readings (see image) when both were connected to my car battery (car not running). I bought mine while restoring a headlight. Installed in my '67 Camaro RS. I install halogen headlights and a wiring harness that shortens the electrical path distance and thus gives more voltage to the headlights (=brighter light). I test and document the tensions at each step to compare old headlights to new and old harness to new harness. The car runs at a constant engine speed. Good: So far it works flawlessly and does what I need it to do. It was delivered quickly and was cheap (can't believe someone complained that the price was too high! C'mon, $8 is too much?!). I would buy this again without hesitation. Mediocre (nothing really bad): It came packaged in a small box that was placed inside a large box. It came out of the smaller box at the time of delivery, probably because it wasn't glued/stapled/glued and was just dangling in the larger box. Luckily there was no damage. Which brings me to the only other so-so thing - there's no feedback on that one - the electronics are on display. This is not surprising as mentioned in other posts. never mind I did what the other reviewer did: I took the light switch cover and cut a hole for it to go in, then plugged it into a single outlet box with wires coming out the back. Works perfectly. EDIT - I tried to attach a picture (as mentioned in my review) of my craft knife next to RioRand showing tension readings of 12.80 (Master) and 12.81 (RioRand) but the process of posting photos everyone sees can is counterintuitive and it didn't work. So you can read my results in this edit. If I could review Revain's image posting process I would give it zero stars.
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