Our company works almost exclusively with Fluke or GMC. That is why I was pleasantly surprised that this affordable device made such a sophisticated look in my hands. On the internet reviews can be found on this device, from these apparent that the clamp meter in DC area high precision works, this unless you change the meter after calibration able. I have the equipment purchased by the current consumption of our 24VDC to identify circuits, and for the home to check from time to time that no voltage or a lamp socket before working on it. But spending more money for a Fluke seemed pointless. The meter also has a non-contact voltage detection, this works very well, but should never be used as it to check the absence of voltage. But always please the voltage by measuring cable Check again to earth and to earth. I would buy the instrument back, price and performance fits perfectly for me.