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Extech EX623
400A Dual Input AC/DC Clamp Meter with Non-contact Voltage Detector and Infrared Thermometer

  • True RMS measurements for accurate AC Voltage and Current measurements
  • Dual type K thermocouple input with Differential Temperature function (T1, T2, T1-T2)
  • Built-in non-contact Voltage detector with LED alert
  • DC µA multimeter function for HVAC flame rod Current measurements
  • Data Hold plus fast Peak Hold of current surges during motor startup
  • 40,000 count multimeter functions for DC Voltage, Resistance, Capacitance, and Frequency for high resolution over wider ranges
  • Measures motor capacitors to 40,000µF
  • 1.25" (32mm) jaw opening for conductors up to 500MCM
  • Rugged double molded housing
  • Auto power off with audible alert and disable function
  • Autoranging with manual override
  • DC Current function ideal for automotive, heavy equipment and marine applications
  • Available in alternate configurations:
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Extech EX623
Product Information
Datasheet 446 KB
Manual 1.07 MB
EX600 Series
PDF Help
Temperature (IR) -58 to 518°F (-50 to 270°C)
AC Current 400.0A
DC Current 400.0A
Max resolution 10mA
Basic ACA accuracy ±1.5%
AC/DC Voltage (Max Res.) 600V (0.1mV)/600V (0.01mV)
DC μA Current 4000μA (0.01μA)
Resistance (Max Res.) 40.000MΩ (0.01)
Capacitance (Max Res.) 10pF to 40,000μF (0.01nF)
Frequency (Max Res.) 40MHz (0.001Hz)
Temperature (Type K) -58 to 1832°F (-50 to 1000°C)
Diode Test < 2.8V
Duty Cycle 0.5 to 99.0%
Ordering Information
Model Description Buy Online Price
EX623 Extech EX623 DUAL TYPE CLAMP METER with AC/DC, TRMS, and K + IR Buy Now $239.99
EX623-NISTL Extech EX623-NISTL 400A Dual Input Clamp Meters and NCV with limited NIST calibration Buy Now $339.99
Optional Configurations
EX613 Extech EX613 400A Dual Input Clamp Meter and NCV (AC/DC Current) Buy Now Sale $153.89
(Reg. $189.99)
EX613-NIST Extech EX613-NIST 400A Dual Input Clamp Meters and NCV with NIST calibration Buy Now $264.99
EX622 Extech EX622 DUAL TYPE CLAMP METER with AC, TRMS K + IR Buy Now
Included Accessories
  • 1 - CAT III-600V
  • 1 - Set of double molded test leads
  • 1 - 9V battery
  • 2 - Type K bead wire probes
  • 1 - Carrying Case

*NOTE: Items ordered with optional NIST calibration will require
approximately 10 days to complete the certification.