RS PRO IDM66RT Handheld Digital Multimeter True RMS

RS Stock No.:: 123-3408
Manufacturer:: RS PRO

RS PRO IDM66RT Handheld Digital Multimeter True RMS

Subtotal (1 unit)*

€297.20

(exc. VAT)

€365.56

(inc. VAT)

Limited stock

Plus 39 left, shipping from 09 February 2026
Plus 4 left, shipping from 16 March 2026

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

Units	Per unit
1 +	€297.20

*price indicative

RS Stock No.:: 123-3408
Manufacturer:: RS PRO

Specifications

Technical data sheets

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	RS PRO
	Product Type	Multimeter
	Multimeter Type	Handheld
	Resistance Resolution	100mΩ
	Model Number	IDM66RT
	Display Type	Digital
	Functions Measured	AC Voltage, DC Current, Temperature, Capacitance, Resistance, DC Voltage, AC Current, Frequency
	Maximum DC Voltage Measurement	1000V
	True RMS	Yes
	AC Voltage Accuracy	±1 % rdg + 5 Digits
	DC Voltage Accuracy	±0.5 % rdg + 2 Digits
	AC Current Accuracy	±1.5 % rdg + 5 Digits
	DC Current Accuracy	±1 % rdg + 2 Digits
	DC Current Resolution	0.001A
	DC Voltage Resolution	0.01 mV
	AC Current Resolution	0.001A ac
	Maximum Frequency	500Hz
	Minimum Operating Temperature	-10°C
	Maximum Operating Temperature	50°C
	Battery Life	300h
	Length	74mm
	Weight	250g
	Standards/Approvals	No
	Width	44 mm
	Height	156mm
	Safety Category Level	CAT III
	Calibrated	UKAS
	Safety Category Voltage	600V
	Battery Type	AM4, AAA 1.5 V, IEC LR03

	Select all
	Brand RS PRO
	Product Type Multimeter
	Multimeter Type Handheld
	Resistance Resolution 100mΩ
	Model Number IDM66RT
	Display Type Digital
	Functions Measured AC Voltage, DC Current, Temperature, Capacitance, Resistance, DC Voltage, AC Current, Frequency
	Maximum DC Voltage Measurement 1000V
	True RMS Yes
	AC Voltage Accuracy ±1 % rdg + 5 Digits
	DC Voltage Accuracy ±0.5 % rdg + 2 Digits
	AC Current Accuracy ±1.5 % rdg + 5 Digits
	DC Current Accuracy ±1 % rdg + 2 Digits
	DC Current Resolution 0.001A
	DC Voltage Resolution 0.01 mV
	AC Current Resolution 0.001A ac
	Maximum Frequency 500Hz
	Minimum Operating Temperature -10°C
	Maximum Operating Temperature 50°C
	Battery Life 300h
	Length 74mm
	Weight 250g
	Standards/Approvals No
	Width 44 mm
	Height 156mm
	Safety Category Level CAT III
	Calibrated UKAS
	Safety Category Voltage 600V
	Battery Type AM4, AAA 1.5 V, IEC LR03

Manufacturer Information

COO (Country of Origin):: TW

RS PRO IDM66RT Digital Multimeter

RS PRO IDM66RT Digital Multimeter is a handheld device which can measure capacitance, voltage, electrical current and resistance with diode and continuity check. This meter has an LCD display where the measurement readouts can be viewed and, offers precision, reliability and ease of use.

The multimeter is the ideal choice for troubleshooting and repairing all your electrical and electronic systems. This True RMS digital multimeter that ensures accurate results even when testing on irregular AC circuits.

RS PRO has a range of digital multimeters which are great value for money and also high quality you can rely on.

Features and Benefits

• Display: 6000 Counts

• Electrical Specifications:

• AC Function: AC V and AC A specifications are ac coupled, true RMS

• Crest factor may be up to 3.0 as 4000 Counts

• AC-DC Voltage up to 1000 V

• AC-DC Current up to 10 A

• Resistance

• Continuity

• Diode

• Capacitance up to 10 mF

• Temperature up to 400°C

• Frequency up to 100 kHz

• Peak Hold

• VoltSense™

• Low batteries indication

• Pollution Degree: 2

• Dimensions (W x H x D): 74 x 156 x 44 mm

Design Features

The RS PRO IDM66RT is designed with soft grips for better user experience and convenience, also include a built-in smart tilt stand, a nail hook and convenient test lead storage.

Ergonomics

• Slim shape design one hand operated knob and buttons

• Fit the palm of your hand perfectly

What does it measure?

DC and AC Voltages

AC and DC Current

Resistance and continuity tester

Diode function

Frequency

Temperature

Capacitance

Typical Applications:

A digital multimeter (DMM) is a handy test tool that measures electrical values such as voltage, current, and resistance. A DMM is used by technicians in the following areas:

Electrical and electronic industries

Safety guidelines

When using any electrical test equipment it is advised that you refer to the user’s manual for proper working operating procedures and safety precautions in order to avoid potential safety hazards.

VoltSense™

RS PRO IDM66RT digital multimeter has a VoltSense™ feature to detect live cable and outlet without contact.

FAQ’s

Q: Can I use this to test if a fuse is good or bad?

A: Yes, you can check a fuse functionality via a continuity test.

Q: Is this multimeter suitable for automotive use?

A: Yes, this multimeter is perfect for automotive applications and much more.

Why RS PRO?

RS PRO is the own brand of RS. The RS PRO Seal of Approval is your assurance of professional quality, a guarantee that every part is rigorously tested, inspected, and audited against demanding standards. Making RS PRO the Smart Choice for our customers.

Standards

Complies with EN61010-1 / IEC61010-1, CAT III 600 V, CAT II 1000 V, EN61010-2-030, EN61326-1

Supplied with

2 x AAA batteries (installed), test leads, temperature probe and user manual