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header-product Network Cable Tester EFB Elektronik 39939.1 Twisted Pair
9.99 €

Network Cable Tester EFB Elektronik 39939.1 Twisted Pair

Network Cable Tester EFB Elektronik 39939.1 Photo 1
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Network Cable Tester EFB Elektronik 39939.1 Twisted Pair

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Network Cable Tester EFB Elektronik 39939.1 Twisted Pair

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Short description

The EFB Elektronik 39939.1 network cable tester is designed for testing twisted pair cables. It features easy-to-read LED indicators for quick fault detection and supports various cable types. Compact and lightweight, it is ideal for both professional and personal use, ensuring reliable network connections.
Available at price 9.99 €: 153 pcs.
Total available for order: 378 pcs.
Warranty: 2 Years
SKU: 1042562
Manufacturer: EFB Elektronik
free shipment

Cheapest delivery:

Latvijas Pasts pakomāts

Pick-up points

Latvijas Pasts pakomāts

Cost

1.99 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
23.07.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
28.07.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 0.17 kg)
Parcel couriers
Latvijas Pasts pakomāts / Unisend LV / DPD Paku skapis / Omniva LV / Venipak Pickup LV / Venipak Locker LV / Latvijas Pasts nodaļa
28.07.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.99 €
payment
Payment Methods:
Cash payment, Bank transfer, Bank cards on-line, Apple Pay, Google Pay
Available for private customers at price 12.49 €: 100 pcs.
Together cheaper
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Product information

Description

The EFB Elektronik 39939.1 Twisted Pair network cable tester is a compact instrument for verifying continuity and wiring of twisted pair cables. It provides quick visual feedback through easy-to-read LED indicators to help identify open wires, short circuits, and miswires. Designed for both professional installers and home users, this tester supports common twisted pair cable types and facilitates troubleshooting of network cabling installations.

Advantages

The tester's compact, lightweight construction makes it portable for field work and convenient for storage. Clear LED indication simplifies diagnosis by showing the status of each conductor without requiring specialized training. Battery-powered operation ensures use in locations without mains power, and a rugged housing increases durability during routine handling.

Suitable for

  • Verifying continuity and wiring order of Ethernet twisted pair cables (e.g., Cat5e, Cat6)
  • Troubleshooting network connection issues in offices and data closets
  • Quick field checks during cable installation and maintenance
  • Home network setup and verification

Key specifications

  • Function: continuity and wiring order testing for twisted pair cables
  • Indicators: multiple LEDs for per-conductor status and overall connection
  • Power supply: battery-powered for portable use
  • Compatibility: supports common twisted pair network cables
  • Form factor: compact and lightweight handheld design

How to use

Connect the main unit and remote terminator to the two ends of the cable under test using the appropriate RJ45 or modular connectors. Power the tester using the installed battery and observe the LED sequence to determine continuity and wiring order. Use the LED indications to identify open circuits, shorts, reversed pairs, or split pairs. Remove power and disconnect the cable after testing to conserve battery life.

Usage recommendations

Use the tester on de-energized low-voltage network cables only; avoid use on live telephone or mains wiring. Replace batteries when LED brightness decreases to maintain reliable readings, and store the unit in a dry environment to prolong service life.

All features
Product colour:
Green, Grey
Built-in display:
No
Product type:
Twisted pair cable tester
Supported connectors:
RJ-11, RJ-12, RJ-45

Description

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Stock data
Warehouse Stock Delivery to the store Store Price
WH94 100 09.07.2026 Best delivery 12.49 €
Available only for legal entities
Warehouse Stock Delivery to the store Store Price
EU4 153 23.07.2026 9.99 €
WH109 125 23.07.2026 17.49 €
12.49 €
Stock: 100
Delivery Date: 09.07.2026 Best delivery
Warehouse: WH94
Available only for legal entities
9.99 €
Stock: 153
Delivery Date: 23.07.2026
Warehouse: EU4
17.49 €
Stock: 125
Delivery Date: 23.07.2026
Warehouse: WH109

Customer reviews

Customer questions

FAQ

How much does the Network Cable Tester EFB Elektronik 39939.1 cost, and is it available for purchase?

The price is 9.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 378 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 23.07.2026 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: Cash payment, 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 EFB Elektronik 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 EFB Elektronik 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. We will assist with consultation, warranty claim processing, and coordination with certified service centers.
warranty
14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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Fast Delivery Get your orders as quickly as possible — right to your door, parcel lockers, or pickup points across Latvia and the EU.
payment
Secure Payment Pay the way you prefer: cash, VISA, MasterCard, Apple Pay, Google Pay, bank transfer, or 0% installment plan.
warranty
Quality Since 2008 AiO.lv has been on the market for over 18 years and has earned trust — with more than 6000 genuine positive reviews on Google.