# Voltage tester probe Topex 140 mm for 125–250 V SRU (model 39D055)

**URL:** https://aio.lv/en/product--topex-39d055--12054197
**Data updated:** 2026-03-12 19:37 (EET)
**Category:** Measuring tools
**Manufacturer:** Topex
**Manufacturer code:** 39D055
**EAN:** 5902062051592
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 2.49 €
**Prices and availability valid until:** 2026-08-22 23:59
**Price without VAT (21%):** 2.06 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--topex-39d055--12054197

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.08.2026 | free |
| Pickup points | 11.08.2026 | 1.79 EUR |
| Courier delivery to door | 11.08.2026 | 4.99 EUR |

## Summary description

Handheld voltage tester probe Topex SRU, 140 mm length, designed for detecting presence of AC voltage in the 125–250 V range. Compact probe suitable for quick checks of sockets, switches and electrical circuits; provides a simple, portable means to verify live conductors and troubleshoot basic wiring issues. Intended for general electrical maintenance and safety checks.

## Long description

The Topex voltage tester probe SRU is a compact handheld tool, 140 mm in length, designed to detect the presence of AC voltage in the 125–250 V range. Suitable for quick verification of live conductors, sockets and switches, this probe provides a simple method to check whether a circuit is energized. Its small size and straightforward operation make it a practical instrument for routine electrical maintenance and basic troubleshooting tasks.
Advantages
The Topex probe offers fast, one-handed checking of AC voltage within the specified range, enabling immediate identification of live circuits. Its compact 140 mm body is easy to carry and manoeuvre in confined spaces. The design emphasises straightforward use and portability while providing consistent detection accuracy for common household and light commercial installations.
Suitable for
 Quick checks of household and office sockets
 Verifying switches and simple wiring during maintenance
 Basic troubleshooting of electrical circuits and outlets
 Temporary verification of conductor presence before non-invasive work
Key specifications
 Detection range: AC 125–250 V
 Overall length: 140 mm
 Handheld probe form factor for single-handed use
 Designed for non-contact or simple contact voltage indication (as applicable)
 Suitable for general electrical maintenance and safety checks in residential and light commercial environments
How to use
Hold the probe by the insulated handle and bring the tip into contact with the conductor, socket contact, or accessible point of the circuit to be tested, following standard safety procedures. Observe the indicator (visual or audible, depending on probe variant) to determine presence of AC voltage within the 125–250 V range. Avoid using the probe on circuits outside the specified range and do not rely on it for isolation verification — always de-energise and confirm with an appropriate testing method before performing live work.
Usage recommendations
Use the probe for preliminary voltage checks and routine inspections only. For work requiring full safety verification, use a calibrated multimeter or a dedicated voltage tester with documented accuracy and insulation ratings. Store the probe in a dry environment and inspect the insulation and tip for damage before each use.

## FAQ

### How much does the Topex voltage tester probe SRU 140 mm 125–250 V cost, and is it available for purchase?

The price is 2.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 100 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 06.08.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Topex products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Topex service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/12054197/67540259_large.webp