Extech clamp meters are a line of diagnostic tools that measure current by clamping around a wire, allowing for safe and non-disruptive measurements of live circuits. They are available in various models that can measure AC and/or DC current, and many include additional functions like voltage, resistance, capacitance, and temperature testing. Key features often include True RMS for accurate readings on non-sinusoidal waveforms, non-contact voltage detection, and specialized modes like inrush current and low-pass filters for variable frequency drives.
![Extech EX655 [EX655-NIST] 600A True RMS AC/DC Clamp Meter + NCV with NIST Calibration](image/cache/wp/gp/image/Extech_EX655-200x200.webp "Extech EX655 [EX655-NIST] 600A True RMS AC/DC Clamp Meter + NCV with NIST Calibration")
