Ridgid 37428 CM-100 Micro Clamp MeterThe Ridgid CM-100 Micro Clamp Meter is a true RMS and auto-ranging digital clamp meter designed for precise measurements. It offers a large capacity and measuring range, clamping around cables up to 30mm O.D. and measuring current up to 1,000A AC/DC, making it suitable for electricians and technicians.Features Measures Voltage AC/DC, Current AC/DC, Resistance, Capacitance, Frequency, Diode Test, Continuity Test, and Temperature. Features a large backlit LCD display with 4,000 counts for clear readings. Slim, double-moulded design allows for easy one-handed operation in confined spaces.Specifications Brand: Ridgid MPN: 37428 EAN: 0095691374288 Clamp size: Max. 30mm O.D. cable Overload protection: CAT III 600V Power Source: 9V battery (included) Display: 4,000 Count backlit LCD Auto Power-Off: Yes, after 20 minutes AutoRanging: Yes True RMS: Yes Data and Peak Hold: Yes Bar Graph Display: Yes