Based on the success of our original stick meter line, the HS33 was designed to measure even more HVAC/R parameters including temperature with quick compensation via a k-type thermocouple plug, a diode test and a built-in non-contact voltage (NCV) tester. The updated ergonomic shape fits firmly and naturally in your hand while testing. A magnetic hanger, along with the detachable test leads and alligator clip probe tips, allow you to remote test and perform other tests hands-free. This is the stick meter schools prefer for their HVAC/R students. It's got all the basics and more. VAC, VDC, AAC, ADC, temperature, capacitance (MFD) and a host of other built-in safety features.