UT211 mini digital clamp meter features high reliability and safety, automatic measurement and small size, and can exactly measure small signal current with a resolution up to 0.1 mA. The product chip is set with VFC start mode and will filter out high-frequency interfering signal by specific filter circuit so as to obtain accurate measurement. It can be applied in occasion with VFC conversion voltage or current and the combination of full-range overload protection function and particular appearance design has made it a new practical electrical measuring instrument with more remarkable performance.