•    Extech MA260 True RMS 200A AC Open Jaw Clamp Meter

Compact AC Clamp Meter with Built-In NCV Detector

The MA260 is a True RMS 200A AC Open Jaw Clamp Meter. The MA260 has a built in NCV detector and can measure up to 200A in its 0.6 in. open jaw. True RMS for accurate readings of noisy, distorted or non-sinusoidal waveforms. Complete with test leads and two AAA batteries. UL listed with a CAT IV 600V safety rating.

True RMS 200A AC Open Jaw Clamp Meter Features:

  • Smart Auto Sensing technology enables the meter to recognize the input and automatically switch to the correct mode of operation
  • For AC Voltage, Auto Sense feature evaluates input signal and adjusts Input Impedance to eliminate effects of ghost voltages
  • 0.6" (16mm) open jaw size
  • True RMS for accurate readings of noisy, distorted or non-sinusoidal waveforms
  • Built-in non-contact voltage detector with LED indicator
  • 10,000 count backlit LCD display
  • Smart Data Hold freezes the reading on the display and automatically changes if a new reading is larger than 50 counts
  • Auto Power Off with disable
  • Slim housing construction with built-in test lead holders
  • Complete with test leads and two AAA batteries



Specifications                                 Range
AC Current                                        200A
AC Voltage                                        1.3V to 1000V
DC Voltage                                        2.1V to 1000V
Non-contact Voltage (NCV)            80 to 1000V AC (50 to 60Hz)
Resistance (Ω)                                   0 to 10kΩ
Input Impedance                             6kΩ up to 30V; Increases to 420kΩ at 1000V
Diode                                                 0.4 to 0.8V
Continuity                                         Beeper(25Ω threshold)
Dimensions                                      7.6 x 2.1 x 1.2" (193 x 54 x 31mm)
Weight                                               9.9oz (280g)


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Extech MA260 True RMS 200A AC Open Jaw Clamp Meter


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