# Network cable tester A-LAN NI021 — UTP/STP continuity tester with LCD, RJ-45 support, grey

**URL:** https://aio.lv/en/product--a-lan-ni021--2035208
**Data updated:** 2026-01-21 10:52 (EET)
**Category:** Cable testers
**Manufacturer:** A-LAN
**Manufacturer code:** NI021
**EAN:** 5901738553118
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

A-LAN NI021 network cable tester for UTP and STP cables provides continuity testing with support for RJ-45 connectors. The unit features a built-in LCD display and grey housing for straightforward on-site diagnostics. It is designed to check wire continuity and basic cable faults; suitable for installers and IT technicians. Do not use in damp conditions or near water.

## Long description

The Alantec NI021 UTP/STP Cable Tester Grey is a compact tool for verifying the continuity and correct wiring of twisted-pair Ethernet cables. Designed for testing both UTP and STP cable types, the unit uses LED indicators to show pin-to-pin connections and identify common faults such as open circuits, short circuits, and miswires. Its straightforward controls and portable form factor make it suitable for on-site troubleshooting and routine cable verification.
Advantages
The tester provides quick visual feedback through LEDs, enabling fast identification of wiring issues without the need for complex setup. Its compact and lightweight construction supports easy transport and use in confined spaces. The device supports multiple cable types commonly used in network installations and presents results in a clear, easy-to-interpret format that helps reduce diagnostic time.
Suitable for
Field network technicians performing on-site cable checks
IT staff verifying new or repaired Ethernet cabling
Home users and DIY enthusiasts installing or troubleshooting LAN cables
Key specifications
Cable types supported: UTP and STP twisted-pair Ethernet cables
Indicators: LED indication for pin mapping and fault detection
Form factor: compact, handheld tester in grey housing
User interface: simple push-button operation with visual LED results
How to use
Connect the main unit and remote unit to each end of the cable under test, then activate the tester using the device controls. Observe the LED indicators to determine whether each conductor is correctly routed and to detect open, short, or crossed connections. For multi-segment testing, move the remote unit to the next cable end as required. Follow basic safety practices by powering down connected equipment before testing if necessary.
Usage recommendations
Use the tester as part of a systematic cable verification process: test new installations after termination, verify repaired cables before returning equipment to service, and store the compact unit in a protective case to prevent damage. Avoid exposing the device to moisture and extreme temperatures to maintain reliable operation.

## Specifications

| Feature | Value |
|---|---|
| Product colour | Grey |
| Built-in display | Yes |
| Display type | LCD |
| Product type | UTP/STP cable tester |
| Test type | Continuity testing |
| Supported connectors | RJ-45 |

## FAQ

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. 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 A-LAN 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 A-LAN 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/2035208/53688694_large.webp