Leakage Current Clamp Meter High Accuracy Digital Leaker Portable Ammeter 40mm Jaw Size ETCR6540 FG05 1Multiple Functions: Leakage current clamp meter, supporting DC current, AC voltage, and resistance measurement, which can meet more usage needs. 2Non Contact Test: This clamp ammeter can measure without physical contact, avoiding the harm caused by direct contact with live wire, improving security. 3Measuring Range: The clamp meter has a measurement range of 0.00mA300.0A, with a sampling rate of 2 times per second, has high accuracy and efficiency. 4Applicable Fields: This clamp meter is shockproof and dustproof, suitable for telecommunication, power, meteorology, electromechanical installation and repair, etc. 5Battery Powered: This leakage current meter is powered by 2pcs 1.5V AAA batteries (not included), convenient and practical, and the 40mm jaw size makes it widely used.