CL120 Series, Mini Clamp-on Testers
AC Current (0-20A-200A) Clamp-on Meters

Portable Pocket Clamp-on meters capable of measuring up to 200AAC
(for conductors up to 24 mm in diameter)

Yokogawa CL120 Clamp-on Meters
  • 3 1/2 digit LCD display
  • 20A range: 2.0%+7dgt (50 to 1kHz) accuracy
  • 200A range: 3.0%+10dgt (40 to 1kHz) accuracy
  • Exclusive model for AC current measurement with current ranges up to 200AAC
  • Lightweight and compact design
  • Measures conuctors up to 24mm in diameter
  • Data Hold function
  • Mean value display
  • Approved for conformity to safety standards EN61010-1,EN61010-2-032 (CAT. III 300 V)

* All Clamp-on Meters include Test Leads (where applicable) and a carrying case

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  • HVA applications, simply clamp around a single conductor to make your measurement without having to break the circuit
  • Testing for current leakage on branch circuits
  • Measuring current draw of motors and motor control circuits
  • Measuring Loads


Yokogawa offers an inexpensive dedicated Clamp-on meters that allow you to measure up to 200AAC, with a wide frequency response range.CL100 series and 2343 series have basic function of AC current measurement. These clamps allow you to measure current range from 20mA to 1000A. Choose your desired diameter of measurable conductor from 24mm to 54mm.

  • Literature
  • Specifications
Literature and Technical Information
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Clamp-on Meters – Portable Test Instruments

++ CL120 Clamp-on Meters| Specification sheet
Model: Yokogawa CL120 Clamp-on Meters
Display LCD (Digital display:1999 counts)
Specific Accuracies
AC Accuracy (20A): 2.0+7 (50~1kHz)
AC Accuracy (200A): 2.0+5(50/60Hz)
General specifications
Accuracy: (20A) 2.0+7 (50 to 1kHz)*
Accuracy: (200A) 3.0+10 (40 to 1kHz)*
Frequency characteristics (AC) – 40Hz to 1kHz
(AC-DC) – 20Hz to 1kHz
Method of detection Mean value
Response Time Approx. 2 seconds
Range Switching Manual-range
Data Hold On all range
Ambient temperature & humidity >0 to 40 deg.C, 85% RH or less (no condensation)
Temperature Coefficient
Influence of external magnetic field 0.8A or less at 400A/m
Influence of conductor position ±2% or less
Safety Standard Conforms EN 61010-1, EN61010-2-032
Circuit Voltage 300Vrms or less
Withstanding Voltage 3.7kV AC for one minute
Auto power-off Approx. 10 minutes
Diameter of measurable
24mm at maximum
Operating Temp.: -4º to +150ºF
-20ºC to +65ºC
Relative Humidity: 95% (non condensing)
Dimensions Approx. 59(W) x 148(H) x 26(D)mm
Weight Approx. 100g
Accessories Clamp Adapter (Model 99025), Carrying Case (Model 93033), User’s manual (IM CL120), Batteries
Power Supply LR-44 x2(3V) or SR-44 x2
Battery Life Approx. 100 hours (continuous)
Consumed Current Approx. 1mA