Nice little meter seems to be well made EXCEPT the sensors are very weak physically. I plugged it into an outside 120v socket to make sure it had power and when I tried to pull the probes right back in BOTH broke and the pins got stuck in the socket! So, I have a nice little meter, but I can't use it. A sad note. The product description says it is covered by a warranty but I don't know how to make a claim.