# Electrical installation tester Topex 39D066 — mains voltage and live wire indicator

**URL:** https://aio.lv/en/product--topex-39d066--11273368
**Data updated:** 2026-03-11 12:03 (EET)
**Category:** Measuring tools
**Manufacturer:** Topex
**Manufacturer code:** 39D066
**EAN:** 5902062051240
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 11.49 €
**Prices and availability valid until:** 2026-07-16 23:59
**Price without VAT (21%):** 9.50 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--topex-39d066--11273368

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 10.07.2026 | free |
| Pickup points | 15.07.2026 | 1.99 EUR |
| Courier delivery to door | 15.07.2026 | 4.99 EUR |

## Summary description

Handheld electrical installation tester Topex 39D066 designed to indicate presence of mains voltage and detect live wires in installations. Portable probe-style device for quick verification of voltage on outlets, switches and wiring, helping electricians and DIY users identify live conductors and troubleshoot basic faults safely and efficiently.

## Long description

The Topex 39D066 electrical installation tester is a handheld probe-style device for detecting mains voltage and identifying live wires in household and light industrial installations. Designed for quick verification at outlets, switches and exposed conductors, this portable indicator helps technicians and DIY users determine the presence of line voltage without dismantling fixtures. The tool operates as a non-contact or contact voltage indicator depending on model operation, providing fast visual feedback to support basic troubleshooting and safety checks.
Advantages
The tester offers a compact, lightweight design that makes on-site checks convenient and rapid. Its probe format enables access to sockets and terminals in tight spaces, while a clear visual indicator allows immediate recognition of live conductors. The device requires minimal setup and is suitable for use by trained electricians and competent DIYers who need a simple instrument for preliminary voltage detection and verification tasks.
Suitable for
Quick voltage checks on wall sockets and switches
Identifying live conductors in wiring runs
Basic troubleshooting of household electrical faults
Verification of power presence before minor maintenance
Key specifications
Handheld probe design for point checks
Indicates presence of mains/line voltage
Portable and lightweight for field use
Visual indicator for fast detection
Suitable for use on outlets, switches and exposed wiring
How to use
Place the probe tip near the conductor, socket contact or switch terminal to check for the presence of mains voltage. Observe the visual indicator to determine if the circuit is live. Follow manufacturer instructions for positioning and any required contact or proximity approach. Use the tester only on systems and circuits within the device's stated voltage range and ensure your hands and work area are dry and free of conductive contaminants.
Usage recommendations
Before performing any electrical work, confirm the tester's functionality on a known live source. Do not rely on this device as the sole means of ensuring circuit de-energization for safe maintenance; always isolate power according to local regulations and use appropriate personal protective equipment.

## FAQ

### How much does the Topex 39D066 electrical installation tester cost, and is it available for purchase?

The price is 11.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 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 10.07.2026 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/11273368/63533868_large.webp