The DM90-NIST 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-NIST gives you trusted readings to troubleshoot and repair a wide range of electrical and electronic systems. The DM90-NIST is shipped fully tested and calibrated, and with proper use, will provide years of reliable service. Comes with certificate traceable to NIST.