Voltage Tester Unit UT22B-EU AC/DC CAT III 400V IP54 handheld

The Unit UT22B-EU voltage tester is a compact handheld device for detecting AC and DC voltage in electrical circuits and equipment. Designed with a CAT III 400V safety rating and IP54 ingress protection, this tester is intended for on-site verification of live conductors and basic troubleshooting tasks. The tool provides quick voltage presence checks and straightforward operation for electricians and maintenance personnel.

Advantages

The tester combines AC and DC measurement capability with a robust IP54-rated housing to resist dust and splashes. Its CAT III 400V safety classification supports use on building installations and fixed equipment up to the rated voltage. The compact form factor and simple interface enable fast, single-handed testing, while clear indicators reduce ambiguity when confirming live circuits.

Suitable for

• Verifying presence of voltage in outlets, switches and terminal blocks
• On-site basic troubleshooting of electrical installations
• Maintenance checks in residential, commercial and light industrial environments
• Quick verification before servicing equipment or replacing components

Key specifications

• Measurement type: AC and DC voltage detection
• Safety rating: CAT III 400V
• Ingress protection: IP54 (splash and dust resistance)
• Form factor: Handheld, compact design for single-handed use
• Display and indicators: Visual indicators for voltage presence
• Power: Battery-powered for portable use

How to use

Before use, inspect the tester for visible damage and ensure batteries are installed and functional. Place the test tip or probes on the conductors or contact points to be measured, following standard safety procedures for working near live parts. Read the tester’s visual indicators to determine presence of AC or DC voltage. Remove the tester from the circuit when testing is complete and store it in a dry, secure place.

Usage recommendations

Use the Unit UT22B-EU only within its rated voltage and environment limits; do not expose it to excessive moisture beyond IP54 conditions. Observe proper personal protective equipment and isolation procedures when working on live installations. Periodically verify the tester’s operation against a known voltage source and replace batteries as needed to ensure reliable indications.