What voltage range does this detector cover?

The voltage tester detects alternating voltages across a range of 12 to 1000V AC.

Is this device approved for explosive environments?

Yes, this model is explosion-protected and approved under the ATEX standard for category II hazardous areas.

How does the tester indicate the presence of voltage?

It indicates voltage using both an acoustic signal and optical multi-colour LED alerts (blue, orange, red).

What batteries are required and are they included?

The device runs on 2 AAA batteries, which are included in the package.

Does the tool have an integrated flashlight?

Yes, it features an integrated bright LED flashlight to illuminate dark work and measurement areas.

WIHA SB2551301 voltage detector Volt detector EX protected contactless unipolar 12-1000V AC incl. 2x AAA batteries - 44309

Name: WIHA SB2551301 voltage detector Volt detector EX protected contactless unipolar 12-1000V AC incl. 2x AAA batteries - 44309
Brand: WIHA
SKU: 08075287
Price: 61.3 EUR
Availability: PreOrder

Supplier number: WIHA 44309 | EAN 4010995443092

61.30 tax incl.

€50.67 excl. VAT (incl. all environmental contributions)

On order: delivered from 16/10/2026

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Delivery by DHL

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Safe non-contact alternating voltage detection

Practical benefits

Reliable Wiha voltage testing: You detect alternating voltages from 12 to 1000V AC without contact using clear optical and acoustic signals.
Certified explosion protection: You work safely in hazardous areas thanks to ATEX compliance and CAT IV 1000V safety ratings.
Integrated LED flashlight: You easily illuminate dark measurement points using the built-in torch, which can also be operated independently.

In a nutshell

The right choise for

With the Wiha SB2551301 voltage detector, you quickly and safely check for alternating voltage without stripping cables or making direct metal contact. Thanks to atex certification for category II hazardous areas and a cat IV 1000V safety rating, you work with confidence in demanding, potentially explosive environments. The tester detects alternating voltages from 12 to 1000V AC, signalling live circuits with clear multi-colour led indicators and acoustic alerts. This makes troubleshooting sockets, junction boxes, and finding cable breaks straightforward. The integrated led flashlight illuminates dark measurement locations, and the two included aaa batteries ensure you can start testing immediately.

Product information FAQ

€61.30

tax incl.

Key features according to our expert

Product description

Increases your efficiency: Integrated powerful LED flashlight.
Saves time: Rapid voltage test thanks to contactless measuring.
Increases your flexibility: The voltage tester covers a large voltage range from 12 - 1,000 V AC.
Increases your efficiency: Compatible for use in all sockets worldwide thanks to measurement tip suited to international usage.
Product dimensions: 240 x 29 x 49 mm (LxWxD)
Application: For the detection and localization of live conductors, cable interruptions and cable breaks, blown fuses, defective lamps on light strings, as well as detection of individual wires.
Measuring category: CAT IV 1,000 V
Standards: EPS 22 UKEX 1 333 X, EPS 19 ATEX 1 223 X
Voltage 12 - 1,000 V AC
CAT IV, 1,000 V, ATEX certified
One-handed test
5-level optical signal
Acoustic signal can be switched on and off
Integrated flashlight function
Prior to the start of electrical installations, electricians must ensure that the work environment is voltage free. A voltage tester is needed for testing alternating electrical fields or detecting potential error sources. Thanks to its optical and acoustic signal, the non-contact Wiha voltage tester indicates whether or not there is any voltage. After switching on, the permanently green illuminated LED indicates readiness. During the voltage test, depending on the strength of the electrical alternating field, the LEDs are illuminated from blue (weak), 'to' orange, to red (strong). Two AAA batteries are required for use, which are included in the scope of delivery. If the device is not in use for 4 minutes, it switches off automatically to save energy. An integrated LED flashlight allows illumination of the measurement site in the dark and can also be used as a flashlight by manually switching it on and off. Thanks to its convenient size the voltage tester with push-on clip fits comfortably in any shirt or pant pocket. With its internationally adjustable measuring tip, the voltage tester is suitable for all outlet variations around the world. The single-pole voltage tester complies with the EN 61010-1 / IEC 61326 standard and is compatible with CAT IV 1,000 VAC. Furthermore,the tool is approved according to the ATEX standard for use in explosive areas (category II). The device should be tested on a known voltage source before and after use to ensure its functionality.
IEC/EN 61010-1, IEC/EN 61326, IP67

All Features

Tool for electrics: No
Battery capacity (ah): 1.3 Ah
Battery voltage (v): 1.5 V
Battery included in package?: No
Battery weight (g): 8 g
Operating temperature min - max (°c): -20 - 40°C
Number of cells: 2
"battery" or "cell": Battery
Watt/hour (w/h): 1.95 w/h
Total weight battery in product (g): 16 g
Battery type (iec designation): 2x AAA batteries
Self service - packing: No
Handle diameter (mm): 28.5 mm
With battery / rechargeable battery: Yes
Protection class ip: IP67
Measuring category: CAT IV 1.000 V
Atex approval: Yes
Overall length (mm): 150 mm
Voltage v ac (max): 1000 V AC
Voltage v ac (min): 12 V AC
Remote voltage test: Yes
Integrated flashlight: Yes
Acoustic signal: Yes
Esd article: No
Voltage v ac min - max: 12 - 1000
Battery capacity (mah): 1300 mAh

Brand WIHA
08075287
EAN 4010995443092
Supplier number WIHA 44309

Frequently asked questions about this product

Answered by specialists

What voltage range does this detector cover?: The voltage tester detects alternating voltages across a range of 12 to 1000V AC.
Is this device approved for explosive environments?: Yes, this model is explosion-protected and approved under the ATEX standard for category II hazardous areas.
How does the tester indicate the presence of voltage?: It indicates voltage using both an acoustic signal and optical multi-colour LED alerts (blue, orange, red).
What batteries are required and are they included?: The device runs on 2 AAA batteries, which are included in the package.
Does the tool have an integrated flashlight?: Yes, it features an integrated bright LED flashlight to illuminate dark work and measurement areas.