RS PRO RS-9985 Insulation Tester, 125V Min, 1000V Max, 4GΩ Max, CAT III 1000V

RS Stock No.:: 161-1630
Distrelec Article No.:: 303-94-886
Brand:: RS PRO

RS PRO RS-9985 Insulation Tester, 125V Min, 1000V Max, 4GΩ Max, CAT III 1000V

Subtotal (1 unit)*

£200.09

(exc. VAT)

£240.11

(inc. VAT)

FREE delivery for orders over £50.00

In Stock

38 unit(s) ready to ship
Plus 15 unit(s) ready to ship from another location
Plus 50 unit(s) shipping from 14 October 2025

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

Units	Per unit
1 +	£200.09

*price indicative

Alternative

This product is not currently available. Here is our alternative recommendation.

Fluke 1587 FC Insulation Tester, 50V Min, 1000V Max, 2GΩ Max, CAT III 1000V - RS Calibration

RS Stock No.: 905-7002

Each

£936.75

(exc. VAT)

£1,124.10

(inc. VAT)

RS Stock No.:: 161-1630
Distrelec Article No.:: 303-94-886
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
	Model Number p	RS-9985
	Tester Type	Insulation Tester
	Maximum Test Voltage	1000V
	Minimum Test Voltage	125V
	Maximum Insulation Resistance Measurement	4GΩ
	Display Type	LCD
	Test Current	1mA
	Power Source	Battery
	Battery Type	9V NEDA 1604
	Minimum Operating Temperature	+5°C
	Maximum Operating Temperature	+40°C
	Safety Category Voltage	600 V, 1000 V
	Safety Category	CAT III 1000 V, CAT IV 600V
	Length	96.5mm
	Weight	631g
	Dimensions	96.5 x 60.5 x 220mm
	Width	60.5mm
	Height	220mm

	Select all
	Brand RS PRO
	Model Number p RS-9985
	Tester Type Insulation Tester
	Maximum Test Voltage 1000V
	Minimum Test Voltage 125V
	Maximum Insulation Resistance Measurement 4GΩ
	Display Type LCD
	Test Current 1mA
	Power Source Battery
	Battery Type 9V NEDA 1604
	Minimum Operating Temperature +5°C
	Maximum Operating Temperature +40°C
	Safety Category Voltage 600 V, 1000 V
	Safety Category CAT III 1000 V, CAT IV 600V
	Length 96.5mm
	Weight 631g
	Dimensions 96.5 x 60.5 x 220mm
	Width 60.5mm
	Height 220mm

COO (Country of Origin):: CN

RS PRO Insulation Tester with Multimeter & Type-K Probe

Insulation testers (or megger tests) are used to ensure the insulation of wiring is safe, or undamaged after electrical work has been carried out. Testers or megohmmeters are vital in preventing tripped fuses, electrical equipment and instrument breakdown, risk of electric shock or fires.

The RS PRO insulation tester with multimeter is a highly versatile and reliable kit with multiple features such as auto AC/DC voltage detection, wide resistance capability, true RMS and more. This insulation meter is compact, very robust and features a large clear LCD display, providing a highly user friendly experience. The RS PRO insulation tester with multimter also includes k-type probes, ensuring you have everything at hand to get the job done.

Features and benefits

• Large LCD display with backlighting to easily see all the relevant information clearly
• IP67 Rating so it’s a dust tight seal with waterproofing
• Auto power off after idle timer has been surpassed to save battery power. This option can be disabled
• Insulation testing: Maximum of 1000V
• Resistance capability from 0.001Ω up to 4000MΩ
• Provided with high quality test equipment so you can use it out of the box
• Auto AC/DC voltage detection
• Ergonomic tilt stand, nail hook and convenient storage for testing probes
• CAT III & CAT IV safety ratings
• K-Type thermocouple reading (Supplied with adaptor)
• True RMS to measure both sinusoidal and non-sinusoidal AC waves

Applications

Insulation testers are a type of device used to test the degradation of insulation for electrical devices, parts and equipment over time. Insulation testers are ideal for preventing potential equipment failures before they occur and make for an excellent troubleshooting tool. Insulation testers are commonly used in areas such as:

• Automotive
• Electrical installation
• Network maintenance
• DIY

What is included

• Test-lead set
• 9V (NEDA 1604) battery
• Type k temperature probe

What is the minimum/maximum test voltage?

This device offers a minimum test voltage of 125V and a maximum of 1000V

Why RS PRO

RS PRO is our own brand range and brings you a wide range of high-quality, great value products offering you more choice. Trusted by engineers all over the world, every part of every RS PRO product has been rigorously tested against demanding industry standards; they’re only given the RS PRO Seal of Approval if we’re confident of their exceptional quality, which means you can be confident too.