The KLEIN CL390 TRMS AC/DC Digital Clamp Meter is a versatile, high-performance tool designed for varied electrical and HVAC applications. Unlike standard clamp meters, the CL390 measures both AC and DC current (up to 400A) via the clamp. It features a High-Visibility Reverse Contrast LCD display, which provides superior readability in both bright daylight and dark environments.
This auto-ranging meter uses True Root Mean Squared (TRMS) technology for accuracy. It measures AC/DC voltage, resistance, continuity, frequency, capacitance, and DC microamps (essential for flame sensor testing). It also includes a K-Type thermocouple for temperature readings and a built-in Non-Contact Voltage Tester (NCVT). Rugged and reliable, it is drop-tested to 6.6 feet (2 m) and carries a CAT III 600V safety rating.