Digital Clamp Meter is a measurement tool designed for being used by electricians, technicians, and serviceman. It is capable of measuring DC and AC voltage, AC current, resistance, diode, continuity and temperature. Features: Overload protection Low battery indication Audible continuity LCD Backlight function Automatic zeroing function Maximum value HOLD mode Data Hold function IEC-61010 CATII CE Marking Specifications: Display: 3 1/2 digit LCD with 1999 max reading Polarity: Auto polarity indication Overrange Indication: display OL or -OL Sampling Rate: approx 3 times per sec. Error caused by improper position: 1% of reading (Note: The conductot should be placed in the center of the jaws to prevent this type of error) Sensor: Clamp-shaped transformer for AC measurements Jaw Opening Capability: 37mm Max. measurable conductor: ?30mm Operating Environment: 0-40C , < 75%RH Storage Environment: -20 - 60C , < 85%RH Battery: 2 x 1.5V AAA batteries Size: 230mm x 77mm x 32mm Weight: about 220g (including batteries) Set includes: 1 x Digital Clamp Meter 1 x Test Leads (pair) 1 x K type Thermocouple 2 x AAA Batteries 1 x English User Manual 1 x Carrying pouch Standard Factory Packaging