Review on BTMETER BT-570CAPP Bluetooth AC DC Clamp Multimeter Amp Meter with Temperature Testing, Auto-ranging for Current, Voltage, Resistance, Capacitance, Continuity, Amperage, Volt, Ohm Clamp-on Ammeter by Prince Fratto

I had to give it back. I thought it would be a great gauge but was let down by a number of things. Eventually it stopped measuring DC voltage and I sent it back. There's a learning curve to measuring DC voltage and the company doesn't really explain it. I've used AC clamp meters on gauges for years and expected them to work just as well as they did. But that's not the case. It takes time to explain the differences and I have posted a video of life on wheels galore because I bought it to work with my RV, solar panels, inverters etc. All DC amplifiers. The problems appear to be due to the AC current measurement degaussing the clamps while the DC measurement magnetizes the clamps. This leaves a residual magnetism which the meter reads and discards everything. The company makes a small mention that you must use a key called the REL key. The instructions describe how to use the REL button and I have not considered its intended purpose for my use. But besides the original purpose of the REL switch, there is another use for DC amplifiers. But having to use it defeats the purpose of the Bluetooth app. You would have to keep running back to the counter to count it. Otherwise, the meter may show incorrect readings and you will always doubt what it says. Also, the app didn't work properly on my Android phone. I had to restart my phone every time for it to work. Then he stopped measuring DC voltage and that was the last straw. Explained again in the video. Will it work for some people? Yes, I think some people can use it, and for the price, it's relatively cheap. AC amps work well and the application would be comfortable with AC. Also, it doesn't measure Fahrenheit, which was another inconvenience.