Clamp Meters

HVAC Clamp Meters

The Clamp Meters category is dedicated to the current-measuring tools HVAC technicians use every day to verify compressor amps, fan-motor loads, heat-strip draw, and full-load current on energized circuits. By clamping around a single conductor instead of breaking the circuit, clamp meters make electrical testing faster and safer on live equipment.

Here you'll find AC clamp meters, True RMS clamp meters for modern variable-speed systems, HVAC clamp meters with temperature and capacitance functions, and inrush-capable meters for motor-start diagnostics. Many models include non-contact voltage (NCV), min/max capture, peak or inrush modes, backlit displays, and CAT III / CAT IV safety ratings suited for residential and light-commercial service.

• AC clamp meters for everyday amp checks on compressors, fans, and heaters.
• True RMS clamp meters for accurate readings on variable-speed and electronic loads.
• HVAC clamp meters with temperature and capacitance for all-in-one field diagnostics.
• Inrush / peak-reading clamp meters to verify motor starting current and breaker sizing.
• Clamp meter kits and accessories including cases, leads, and flexible current probes.

When choosing clamp meters, consider AC and DC current range, True RMS capability, jaw opening size, inrush and min/max capture, CAT safety rating, and additional HVAC functions like temperature and capacitance. Selecting a meter built for the environments and equipment you service helps you diagnose overloaded circuits and borderline motors with confidence.

Pro tip: Use a clamp meter with inrush mode to compare starting current to nameplate LRA, and a True RMS clamp meter when working on variable-speed drives or ECM motors. For tight panels and conduit runs, a clamp meter that accepts a flexible current probe can make otherwise impossible measurements routine.