Subtotal (1 unit)*
£171.00
(exc. VAT)
£205.20
(inc. VAT)
FREE delivery for orders over £50.00
Limited stock
- Plus 44 left, shipping from 19 January 2026
- Plus 1 left, shipping from 19 January 2026
- Plus 4 left, shipping from 16 March 2026
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Units | Per unit |
|---|---|
| 1 + | £171.00 |
*price indicative
Calibration Options:
Each
£217.50
(exc. VAT)
£261.00
(inc. VAT)
Each
£241.50
(exc. VAT)
£289.80
(inc. VAT)
- RS Stock No.:
- 123-3253
- Brand:
- RS PRO
Specifications
Technical Reference
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | RS PRO | |
| Multimeter Type | Handheld | |
| Product Type | Multimeter | |
| 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 | |
| DC Voltage Accuracy | ±0.5 % rdg + 2 Digits | |
| AC Voltage Accuracy | ±1 % rdg + 5 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 | |
| Standards/Approvals | No | |
| Weight | 250g | |
| Length | 74mm | |
| Height | 156mm | |
| Width | 44 mm | |
| Safety Category Level | CAT III | |
| Battery Type | AM4, AAA 1.5 V, IEC LR03 | |
| Safety Category Voltage | 600V | |
| Select all | ||
|---|---|---|
Brand RS PRO | ||
Multimeter Type Handheld | ||
Product Type Multimeter | ||
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 | ||
DC Voltage Accuracy ±0.5 % rdg + 2 Digits | ||
AC Voltage Accuracy ±1 % rdg + 5 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 | ||
Standards/Approvals No | ||
Weight 250g | ||
Length 74mm | ||
Height 156mm | ||
Width 44 mm | ||
Safety Category Level CAT III | ||
Battery Type AM4, AAA 1.5 V, IEC LR03 | ||
Safety Category Voltage 600V | ||
- 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
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