CM-1560 Clamp Tester with Calibration Certificate AC and DC current measurements. AC and AC/DC current measurements with low-pass filter for accurate measurements on variable frequency drives. Also measures DC voltage, resistance, capacitance, and frequency. Continuity and diode tests. Flashlight inside the clamp jaw for easier working in dark areas. Backlight and relative mode for greater versatility. Peak RMS motor inrush current measurements. AmpTip™ improves accuracy on small wires and low currents. Two voltage detection modes - non-contact or using a simple test lead. Data retention. Maximum, minimum, and average recording. Peak function (peak current capture) captures current or voltage peaks as short as 5 milliseconds. Features Measures 60, 600, 1000 A AC+DC Amperage LCD Display, 6000 Counts Rated Frequency: Voltage: 50/60 Hz, Current: 40 to 400 Hz Includes (2) 1.5 V AA Batteries, Test Leads, and Carrying Case Jaw Opening: 2.0 in (51 mm) Measurement Category: CAT. III 1000 V, CAT. IV 600 V Spare part: TSG-3 test leads, TC-30 carrying case Resistance measurement: 600, 6k, 60 kOhms CAT IV standard, C/US, UL, CE listed Active power: TRUE RMS AC and DC Voltage measurement: 600, 1000 V AC and DC