CM4X Series

The FLIR CM4X Clamp Meter Family includes three professional and affordable True RMS meters designed for commercial and residential electricians.

The CM42 and CM44 feature AC clamp measurement, and the CM46 offers both AC/DC measurement to meet your unique needs. Each meter is equipped with a bright backlit display for ease of use inside electrical panels. Accu-TipTM technology delivers amperage measurements on smaller-gauged wires more accurately – to a tenth of a digit.

All models offer MAX/MIN/AVG recording, frequency measurement, and electrical field detection to help you determine voltage presence and relative strength of the field.

Made with an over-molded, easy-to-grip design, the CM4X clamp meter family is durable enough to withstand a two-meter drop, and the slim form factor is convenient to carry in your toolbag anywhere you go.

Additional Info

Export Restrictions

The information contained in this page pertains to products that may be subject to the International Traffic in Arms Regulations (ITAR) (22 C.F.R. Sections 120-130) or the Export Administration Regulations (EAR) (15 C.F.R. Sections 730-774) depending upon specifications for the final product; jurisdiction and classification will be provided upon request.


Measurements CM42 CM44 CM46 Basic Accuracy
DC Voltage 600 V 600 V 600 V ±1.0%
AC Voltage (Digital Low Pass Filter/VFD) 600 V 600 V 600 V ±1.0%
AC + DC Voltage (Digital Low Pass Filter/VFD) 600 V ±1.2%
Clamp-On AC Current (50-100 Hz) (100-400 Hz) 400 A 400 A 400 A ±1.8% ±2.0%
Accu-Tip Clamp-On AC Current 60A 60A 60A ±1.5%
Clamp-On DC Current 400 A ±2.0%
Accu-Tip Clamp-On DC Current 60A ±2.0%
Frequency 50-400 Hz 50-400 Hz 50-400 Hz ±1.0%
Resistance 60 kΩ 60 kΩ 60 kΩ ±1.0%
Capacitance 2500 μF 2500 μF ±2.0%
Diode 2.0 V 2.0 V 2.0 V ±1.5%
DCμA 2000 μA 2000 μA ±1.0%
Temperature -40°C to 400°C (-40°F to 752°F) -40°C to 400°C (-40°F to 752°F) ±1.0%
General Meter
Display 3-5/6 digits 6000 counts
Operating Temperature -10°C to 50°C (14 to 122°F)
Continuity 10Ω< & < 250Ω
Recording Min/Max/Avg
Backlight LCD Yes
Drop Test 2m
Certifications UL,CE
Category CAT IV 300V / CAT III 600V
Jaw Opening 30 mm Max
Warranty Limited Lifetime
Battery Type 2xAAA

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