The Testrite T-325 process clamp meter is a True RMS digital AC/DC clampmeter for use in control circuits and industrial electrical machinery where the need to measure lower currents at a high resolution is required. Although the Testrite T-325 can measure currents up to 100A in AC and DC circuits, it can measure low curents with a resolution of only 1 mA, making it a clear choice for electrical circuits, controls and low DC current measurements.

Having a tapered jaw, makes it possible to fit the Testrite T-325 in amongst bunches of cables, making it easier to clamp onto the correct cable and obtain a more accurate measurement. The hold function freezes the display, making it possible to read the last captured reading, and the MIN / MAX function can capture peak currents. A backlit display is also coupled with a bright work light, built into the jaw to illuminate dark switchboards and wiring looms easily.

The Testrite T-325 can measure a number of other parameters, including AC and DC voltage of up to 300V, continuity (with an audible buzzer) and resistance. The auto-off function will conserve battery life and the T-325 low current process clamp meter is supplied complete in a soft carry case with test leads, user documentation and batteries.


  • Measures True RMS current up to 100A (AC/DC)
  • Low current range with high resolution of 1mA
  • Measures control signals - both AC and DC
  • Process loop 4-20mA measurements and monitoring
  • Data hold and MIN / MAX functions
  • Auto Ranging
  • DC zeroing button
  • Backlit LCD display and built in work light in jaw
  • Measures continuity (with buzzer), resistance and voltage (AC/DC up to 300V)
  • Auto Power off to conserve battery life
  • Tapered jaws for budled cables and tight to reach areas


  • Process loop measurements
  • Industrial machinery troubleshooting
  • Automotive low DC current troubleshooting
  • General electrical troubleshooting