What voltage range does this voltage tester measure?

The tester measures AC and DC voltages from 0V to 400V using clear LED indicators.

Does this device indicate DC polarity?

Yes, the dedicated positive (+) and negative (-) LED s indicate the polarity on DC circuits.

Can this unit test residual current devices?

Yes, it includes an integrated RCD test function to verify circuit breaker operation.

What is the ingress protection rating of this tester?

It features an IP54 rating, making the housing resistant to dust and water splashes.

What safety category rating does this instrument have?

The tester is rated CAT III 400V for measurements in building installations.

STANLEY FMHT82566-0 FATMAX LED voltmeter 2-pole

Name: STANLEY FMHT82566-0 FATMAX LED voltmeter 2-pole
Brand: STANLEY
SKU: 02950123
Price: 17.68 EUR
Availability: PreOrder

Supplier number: STANLEY FMHT82566-0 | EAN 3253560825669

Recommended Retail Price €21.64

17.68 tax incl.

€14.61 excl. VAT (incl. all environmental contributions)

On order: delivered from 22/10/2026

Delivery by DHL

✆ Talk to a specialist

Fast testing with Stanley Fatmax

Practical benefits

Clear instant led readings: You instantly see voltage levels up to 400V and detect DC polarity with illuminated indicators.
Integrated residual current testing: You quickly verify that circuit breakers trip correctly using the dedicated test button.
Durable dust and water resistance: The rugged IP54 housing protects your tool against dust ingress and water splashes on busy jobsites.

In a nutshell

The right choise for

With the Stanley Fatmax FMHT82566-0 two-pole voltage tester, you quickly and safely verify whether electrical circuits are de-energized. Whether you are troubleshooting distribution boards, checking wall outlets, or carrying out renovation work, clear led indicators immediately show ac and DC voltage levels up to 400V as well as polarity. The integrated rcd test function allows you to reliably verify that residual current circuit breakers trip as intended. Built with a rugged IP54-rated housing, this tester resists dust and water splashes on demanding jobsites. Rated at cat III 400V, it gives you the confidence and protection you need for every residential installation.

Product information FAQ

€17.68

tax incl.

Key features according to our expert

Max. voltage: 400 V
Min. voltage: 0 V
Product Range: Stanley Fatmax

Product description

STANLEY FATMAX LED VOLTMETER

Features

LED display - measured value immediately readable on the display
Polarity identification
Earth fault protection
CAT III 400 V
AC / DC 400 V
IP 54

All Features

Max. voltage: 400 V
Min. voltage: 0 V
Product range: Stanley Fatmax

Brand STANLEY
02950123
EAN 3253560825669
Supplier number STANLEY FMHT82566-0

Frequently asked questions about this product

Answered by specialists

What voltage range does this voltage tester measure?: The tester measures AC and DC voltages from 0V to 400V using clear LED indicators.
Does this device indicate DC polarity?: Yes, the dedicated positive (+) and negative (-) LED s indicate the polarity on DC circuits.
Can this unit test residual current devices?: Yes, it includes an integrated RCD test function to verify circuit breaker operation.
What is the ingress protection rating of this tester?: It features an IP54 rating, making the housing resistant to dust and water splashes.
What safety category rating does this instrument have?: The tester is rated CAT III 400V for measurements in building installations.