The ZT-Y-US is a high precision multimeter suitable for students, electricians,maintenance personnel and laboratories. The safety level is CATII 600 volts. True RMS multimeter, the multimeter includes an easy-to-use front cover, and an inverted triple display, a flashlight on the top, and a comfortable dial that allows you to quickly switch functions, saving you time. You can use it to measure: AC and DC voltages, including millivolts AC and DC current including milliamps and microamps temperature measurement Resistance measurement Continuity test Diode Test Capacitance measurement NCV measurement Square wave output V.F.C Immunity measurement REL absolute value measurement Other functions: Manual automatic range switching Maximum and minimum records data retention flashlight.