RS PRO ICM139R Clamp Meter, 1000A dc, Max Current 1000A ac CAT III 1000 V, CAT IV 600 V

RS Stock No.:: 123-3227
Distrelec Article No.:: 304-03-868
Manufacturer:: RS PRO

RS PRO ICM139R Clamp Meter, 1000A dc, Max Current 1000A ac CAT III 1000 V, CAT IV 600 V

Subtotal (1 unit)*

€303.69

(exc. VAT)

€373.54

(inc. VAT)

In Stock

33 unit(s) ready to ship from another location
Plus 100 unit(s) shipping from 30 October 2025

Need more? Click ‘Check delivery dates’ to find extra stock and lead times.

Units	Per unit
1 +	€303.69

*price indicative

Compare

Calibration Options:

RS PRO ICM139R Clamp Meter, 1000A dc, Max Current 1000A ac CAT III 1000 V, CAT IV 600 V With RS Calibration

Calibration Type:: RSCAL

RS Stock No.: 123-3349

Each

€372.69

(exc. VAT)

€458.41

(inc. VAT)

RS PRO ICM139R Clamp Meter, 1000A dc, Max Current 1000A ac CAT III 1000 V, CAT IV 600 V With UKAS Calibration

Calibration Type:: UKAS

RS Stock No.: 123-3350

Each

€401.69

(exc. VAT)

€494.08

(inc. VAT)

RS Stock No.:: 123-3227
Distrelec Article No.:: 304-03-868
Manufacturer:: RS PRO

RS PRO ICM139R True RMS Clampmeter

From the trusted RS PRO brand, this ICM139R clamp meter offers high specification performance in a rugged, low-cost unit. It has true RMS reading on AC mode to ensure accurate current measurement. It utilises Hall Effect technology and features nickel steel alloy jaws for precise measurement of ac and dc current up to 1000 A.

Battery-powered for maximum portability, and with a large backlit screen, this multifunction current clamp meter is ideal for on-the-go applications in almost any environment.

It is also supplied in a carry case to keep the clampmeter safe and secure during transit.

Features and Benefits

• 4000 Count digital display
• Backlit, large-scale display
• Analogue bargraph 43 segments
• True RMS reading on AC mode
• AC 1000 A capability
• AC 750 V capability
• DC 1000 V capability
• 400 Ω resistance capability
• Continuity bleeper
• Display hold
• Peak hold (10 Ms)
• Min/Max function
• Auto power off
• Complies with CAT IV 600 V / CAT III 1000 V

Applications

This current clamp meter is designed for current measurement in electrical testing, and combines a digital multimeter with a clamping current sensor. The nature of the clamp means that it can fit around a wire at any point to sense AC Current. This has the advantage of allowing electricians to take a reading from a wire without touching it, which is both more convenient and safer than other methods.

True RMS (Root Mean Square) reading has advantages over average RMS reading in that it compensates for interfering electronic loads or distorted sinewaves to give an accurate reading.

This current clamp is used for measuring high levels of current in service and maintenance applications. It can also be used when installing electrical equipment.

Why RS PRO?

RS PRO aims to be your go-to brand when you need reliability, quality, and affordability. We source high-quality tools and parts from trusted sources and employ expert testing to build a brand you can rely on.

When it comes to test and measurement equipment, RS PRO has an extensive range of solutions. From electrical to environmental measurement, we offer calibrated and multi-function instruments to suit your needs.

Standards

Battery (installed), test leads, carrying case and user manual

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	RS PRO
	Absolute Maximum AC Current Measurement	1000A ac
	Absolute Maximum DC Current Measurement	1000A dc
	Absolute Maximum AC Voltage Measurement	750V ac
	Absolute Maximum DC Voltage Measurement	1000V dc
	Absolute Maximum Resistance Measurement	400Ω
	Model Number	ICM139R
	AC Current Measurement Resolution	100mA
	DC Current Measurement Resolution	100mA
	Best DC Current Accuracy	±(1% rdg + 3dgts)
	Clamp Meter Type	AC/DC Clamp Meter
	Best AC Current Accuracy	±(1.5% rdg + 5dgts)
	Best AC Voltage Accuracy	±(1% rdg + 5dgts)
	Best DC Voltage Accuracy	±(0.7% rdg + 2dgts)
	True RMS	Yes
	Functions Measured	AC Current, AC Voltage, Continuity, DC Current, DC Voltage, Diode Test, Frequency, Resistance
	Jaw Capacity Busbars	51mm
	Safety Category Level	CAT III, CAT IV
	Battery Life	300 h
	Weight	420g
	Maximum Conductor Size	51 (Dia.)mm
	AC Voltage Measurement Resolution	100mV
	Dimensions	90 x 51 x 275mm
	DC Voltage Measurement Resolution	100mV
	Minimum Operating Temperature	0°C
	Resistance Measurement Resolution	100mΩ
	Length	90mm
	Width	51mm
	Power Source	Battery
	Battery Type	9V, IEC 6F22, NEDA 1604
	Safety Category Voltage	600 V, 1000 V
	Maximum Operating Temperature	+50°C
	Display Type	LCD
	Best Resistance Measurement Accuracy	±1% + 3 Digits
	Height	275mm
	Safety Category	CAT III 1000 V, CAT IV 600 V

	Select all
	Brand RS PRO
	Absolute Maximum AC Current Measurement 1000A ac
	Absolute Maximum DC Current Measurement 1000A dc
	Absolute Maximum AC Voltage Measurement 750V ac
	Absolute Maximum DC Voltage Measurement 1000V dc
	Absolute Maximum Resistance Measurement 400Ω
	Model Number ICM139R
	AC Current Measurement Resolution 100mA
	DC Current Measurement Resolution 100mA
	Best DC Current Accuracy ±(1% rdg + 3dgts)
	Clamp Meter Type AC/DC Clamp Meter
	Best AC Current Accuracy ±(1.5% rdg + 5dgts)
	Best AC Voltage Accuracy ±(1% rdg + 5dgts)
	Best DC Voltage Accuracy ±(0.7% rdg + 2dgts)
	True RMS Yes
	Functions Measured AC Current, AC Voltage, Continuity, DC Current, DC Voltage, Diode Test, Frequency, Resistance
	Jaw Capacity Busbars 51mm
	Safety Category Level CAT III, CAT IV
	Battery Life 300 h
	Weight 420g
	Maximum Conductor Size 51 (Dia.)mm
	AC Voltage Measurement Resolution 100mV
	Dimensions 90 x 51 x 275mm
	DC Voltage Measurement Resolution 100mV
	Minimum Operating Temperature 0°C
	Resistance Measurement Resolution 100mΩ
	Length 90mm
	Width 51mm
	Power Source Battery
	Battery Type 9V, IEC 6F22, NEDA 1604
	Safety Category Voltage 600 V, 1000 V
	Maximum Operating Temperature +50°C
	Display Type LCD
	Best Resistance Measurement Accuracy ±1% + 3 Digits
	Height 275mm
	Safety Category CAT III 1000 V, CAT IV 600 V

RS PRO ICM139R Clamp Meter, 1000A dc, Max Current 1000A ac CAT III 1000 V, CAT IV 600 V

Calibration Options:

RS PRO ICM139R True RMS Clampmeter

Standards

Related links