The UT200+series handheld automatic range true effective value clamp meter is designed according to the safety standard EN61010-2010 CAT II600V/CAT III 300V level, and has full function gear burn protection, which can meet the requirements of high reliability and high safety operation; The product includes the basic functions of electrical measurement, with high-precision measurement, and has expanded the high-voltage frequency measurement function of current frequency (only UT201+/UT202+/UT202A). UT202+/UT204+has temperature measurement function, and UT203+/UT204+has AC/DC current measurement function. The more innovative external design makes it a preferred measurement tool for electronic and electricians with superior performance.