Product Features: Measures AC/DC voltage up to 1000V, AC/DC current, resistance, frequency, capacitance, temperature, and duty cycle Dual thermocouple takes simultaneous temperature readings on low and high side of an HVAC system Low pass filter accurately measures voltage on variable frequency drives Non-contact voltage detection enhances safety Audible continuity quickly identifies shorts and opens Diode test to verify diode polarity Data hold freezes the reading on the display for further analysis Peak hold (crest) captures and holds the peak value of a voltage or current surge MIN/MAX recording records min/max measurements over time to show voltage fluctuations Relative zero mode displays the difference between the actual reading and a stored reference value and may be used with any function or range CAT IV 600V/CAT III 1000V safety rated for high voltage environments