Review on MCIGICM Digital Voltage Tester, Mini DC Voltmeter 2.5V-30V with 0.28 inch LED Display (Pack of 5) by Ryan Moran

I bought these for a project that used a dedicated battery board and they were perfect for voltage monitoring, to damage the multimeter unnecessarily. They are accurate enough for what I needed them for and given the price I would consider them a good deal. Several times my multimeter showed 3.7V and this one 3.8V or vice versa, but I can't tell for sure which one was off. It didn't matter either as I didn't need high accuracy and the readings were reliable despite the slight variance. If you need extremely accurate measurements then this isn't the best choice, but it's not intended as such either and you probably wouldn't consider it for that use anyway. For me they worked as advertised, provided readings that met my needs, were cheap for many of them, and arrived quickly. I would recommend them for simple projects and kits and would buy them again.