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Home clamp meters by extech Extech Instruments Index Extech Instruments and Equipment Clamp Meters Extech Instruments and Equipment 600A & 400A Clamp Meters

Extech Instruments and Equipment - AC and AC/DC Clamp Meters

Extech 600A & 400A Clamp Meters



Extech Instruments and Equipment - AC/DC Clamp Meter - Model MA220
 Extech 400A AC/DC Clamp Meter w/NIST
 MA220-NIST 5% Instant Rebate applied when order is processed $164.99

AC/DC Current meter with 11 functions

Extech Clamp Meter MA220 Features:
  • One touch "Auto Zero"
  • 400A AC/DC Current
  • 4000 count LCD display
  • Functions include Capacitance, Frequency, Temperature, and Duty Cycle
  • Includes bead wire temperatue probe (-58 to 482°F/-50 to 250°C)
  • Compact size allows measurements in tight locations
  • High accuracy for Current measurements
  • Autoranging with Auto Power Off
  • 0.9" (23mm) jaw size accommodates conductors up to
  • Continuity beeper and Diode test
  • Data Hold freezes current reading on display
  • Overload protection for all ranges
  • Overrange and low battery indicators
  • Complete with test leads, case, and two AAA batteries
NOTE: For an additional charge, Extech will supply your meter complete with a Certificate of Calibration Traceable to N.I.S.T. with Data.
Specifications Model MA220
AC Current 40, 400A (0.01A)
DC Current 40, 400A (0.01A)
Basic accuracy AC: ±3%, DC: ±2.5%
DC Voltage 400mV, 4V, 40V, 400V, 600V (0.1mV)
AC Voltage 400mV, 4V, 40V, 400V, 600V (0.1mV)
Basic accuracy AC: 2%, DC: ±1.5% 
Resistance Ω 400, 4k, 40k, 400k, 4M, 40MΩ (0.1Ω) 
Capacitance 40nF, 400nF, 4µF, 40µF, 100µF (0.01nF) 
Frequency 5Hz, 50Hz, 500Hz, 5kHz, 150kHz (0.001Hz) 
Temperature -58 to 1830°F (-50 to 1000°C) (1°)
Duty Cycle 0.5 to 99.0% (0.1%) 
Continuity Beeper ≤30Ω
Power Two AAA batteries
Dims/Wt. 7.9x2x1.4" (200x50x35mm)/ 7oz

Extech Instruments and Equipment - AC/DC Clamp Meter - Model 38389
 Extech 600A True RMS AC/DC Clamp Meter w/NIST
 38389-NIST 5% Instant Rebate applied when order is processed $204.99

AC/DC Current meter with 9 functions including Capacitance and Temperature

Extech 38389 Features:
  • True RMS voltage and current measurements
  • AC/DC current to 600A
  • Large 4000 count LCD display
  • Capacitance measurements
  • Temperature measurements
  • Includes temperature probe (-58 to 482°F/-50 to 250°C)
  • Maximum AC current of 600A
  • Measure AC Current, AC/DC Voltage and Resistance
  • Data Hold "freezes" data in display
  • 1.25" (33mm) circular jaw opening for large cables (350MCM)
  • Peak Hold captures in-rush currents
  • Audible Continuity beeper
  • Auto power off
  • Complete with test leads, 9V battery, and belt holster
NOTE: For an additional charge, Extech will supply your meter complete with a Certificate of Calibration Traceable to N.I.S.T. with Data.
Specifications Model 38389
(Max Resolution) 		Basic Accuracy
(%rdg+digits)
AC Current 400A, 600A (Trms) (100mA) ±(3.0% + 5d)
DC Current 400A, 600A (100mA) ±(2.5% + 3d)
DC Voltage 400mV, 4V, 40V, 400V, 600V (0.1mV) ±(0.5% + 2d)
AC Voltage 4V, 40V, 400V, 600V (Trms) (1mV) ±(0.8% + 3d)
Resistance 400Ω, 4kΩ, 40kΩ, 400kΩ, 4MΩ, 40MΩ (0.1Ω) ±(0.8% + 4d)
Capacitance 40nF, 400nF, 4µF, 40µF, 100µF (0.01nF) ±(3.5% + 5d)
Temperature -4 to 1400°F, -20 to 760°C (1°F/°C) ±(3.0% + 3°F/2°C)
Continuity Beeper ≤30Ω  
Power 9V battery  
Dimensions 3.1 x 8 x 1.6" (79 x 203 x 41mm)  
Weight 6.5oz (185g)  


Extech Instruments and Equipment - AC/DC Clamp Meter - Model 38394
 Extech 600A AC/DC Clamp MultiMeter w/NIST
 38394-NIST 5% Instant Rebate applied when order is processed $169.99

Compact clamp with Relative and Frequency functions

Extech 38394 Features:
  • Large 2400 count display (4999 counts for Hz)
  • Clamp jaws open to 1.2" (30mm), 350MCM
  • Compact, rugged clamp-on with splash resistant front panel design
  • Measure AC/DC Current and Voltage, Frequency and Resistance
  • Auto or manual ranging with Data Hold and Relative mode
  • Continuity beeper and Diode test
  • Overload protection on all ranges
  • Complete with test leads, two 1.5V AA batteries and carrying case
NOTE: For an additional charge, Extech will supply your meter complete with a Certificate of Calibration Traceable to N.I.S.T. with Data.
38394 Specifications Range / Max Res. Basic Accuracy
AC Current  600A / 0.1A  ±(2% + 5d) 
DC Current  600A / 0.1A  ±(2% + 8d) 
AC Voltage  600V / 0.001V  ±(1.2% + 5d) 
DC Voltage  600V / 0.1mV  ±(1% + 2d) 
Resistance  24MΩ / 0.1Ω  ±(1% + 5d) 
Frequency  100kHz / 0.01Hz  ±(1% + 5d) 
Continuity  <10Ω   
Diode test:  Yes   
Power  Two 1.5V AA Batteries   
Dimensions  7.0 x 2.5 x 1.3x
(178 x 64 x 33mm) 		  
Weight  8oz (230g)   

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