AEMC 401 True RMS Clamp-on Meter measures AC Current, AC/DC Voltage, Resistance, Continuity, and Diode Test. This handheld meter is 1000V CAT IV Rated with a 10,000 count blue backlit display. The AEMC 401 True RMS Clamp on Meter also features an IP54 Rating making it a rugged and durable meter for most working conditions.