The DM90 is an affordable True RMS digital multimeter with a Type-K Thermocouple, an ideal tool for electricians, service technicians, and HVAC professionals to have on the job. With rich features including LoZ, VFD Mode and uA current measurement capability, the DM90 gives you trusted readings to troubleshoot and repair a wide range of electrical and electronic systems. The DM90 is shipped fully tested and calibrated, and with proper use, will provide years of reliable service.