Mastech MS8264 Backlit 30-Range Digital Multimeter with Temperature Measurement (01DMMS8264) 30 range full featured Digital multimeter with N, frequency and temperature measurement Conform to the iec1010-1 standard cat III 600V and cat II 1000V Automatic indication of functions and symbols, diode test Continuity test; auto power off Resetable fuse inside; 1 Year tekpower USA warranty