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 All Categories    Model EX623 Clamp Meter - Extech
Weschler Instruments is a manufacturer and distributor of electrical and electronic measurement equipment. Customers worldwide use our products in power plants, steel mills, chemical plants, paper mills and other industrial applications that require rugged, reliable and accurate instrumentation.
All Categories > Test Equipment > Extech Clamp Meters > Model EX623 Clamp Meter - Extech > Item # EX623  
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Item # EX623, Model EX623 Clamp Meter - Extech

EX623 Clamp Meters

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400A Dual Input Clamp Meters + IR Thermometer + Non-Contact Voltage Detect
  • TRMS AC Voltage & Current measurements
  • Dual type K thermocouple input with Differential Temperature function
  • Non-contact Voltage detector with LED alert
  • Non-contact IR Thermometer with laser pointer for locating hot spots
  • DC Voltage, DC Current, Resistance, Capacitance,Frequency & Duty Cycle functions
  • Autoranging with manual override
  • Data Hold plus fast Peak Hold for surges
  • Complete with test leads, 9V battery, two Type K bead wire probes and case


AC Sensing


Display Counts


Jaw Size/ Cable Size

1.4 in (36mm)

AC Current

400µA , 40A, 400A

DC Current

400µA , 40A, 400A

Max Resolution

0.1µA, 0.01A

Basic AC/DC Accuracy


AC/DC Voltage (Max. Res.)

AC: 600V (0.1V)
DC: 600V (0.01mV)

Resistance (Max Res.)

40Mohm (0.01ohm)

Capacitance (Max Res.)

40mF (0.01nF)

Frequency (Max. Res.)

100MHz (0.01Hz)

Temperatures (Type K)

58 to 1832 ºF

IR Temperature

58 to 518 ºF



Data Hold




Safety Rating



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