# Network Cable Tester Unit UT681C with LCD display and cable length measurement

**URL:** https://aio.lv/en/product--unit-ut681c--11631261
**Data updated:** 2026-02-09 14:26 (EET)
**Category:** Cable testers
**Manufacturer:** Unit
**Manufacturer code:** UT681C
**EAN:** 6935750568118
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 15.49 €
**Prices and availability valid until:** 2026-07-09 23:59
**Price without VAT (21%):** 12.80 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--unit-ut681c--11631261

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 26.06.2026 | free |
| Pickup points | 01.07.2026 | 1.99 EUR |
| Courier delivery to door | 01.07.2026 | 4.99 EUR |

## Summary description

The Unit UT681C is a network cable tester designed to verify connectivity and measure cable length. It features an LCD display for clear readouts and supports common network cable tests. Use it for installation, troubleshooting, and maintenance of Ethernet and other structured cabling systems to quickly identify faults and approximate cable run length.

## Long description

UNI-T UT681C network cable tester is a portable tool for checking Ethernet, telephone and BNC cables. It detects breaks, short circuits, crossed pairs and incorrect connections, and is powered by a 9V battery. The compact design, clear LED indicators and simple one-button control make the UT681C suitable for quick field checks and more thorough inspections in offices or server rooms.
Advantages
The tester supports RJ45, RJ11 and BNC connectors (BNC via included RJ45-BNC adapter) and offers fast and slow test modes for signal continuity and fault diagnosis. A row of LEDs (LED1–LED8 and LED\_G) shows the condition of individual conductors, while automatic shut-off after 10 minutes and a low-battery indicator help preserve battery life. The device is lightweight and certified to CE and UKCA standards.
Key specifications
Manufacturer: UNI-T
Manufacturer code: UT681C
Supported connectors: RJ45, RJ11, BNC (with RJ45-BNC adapter)
Test functions: detection of short circuits, breaks, crossings and incorrect connections
Test modes: fast, slow
Result display: LEDs (LED1~LED8, LED\_G)
Ethernet cable shielding test: Yes
Power supply: 9V battery
Automatic shutdown: after 10 minutes of inactivity
Low battery indicator: below 7.2V
One-button operation: Yes
Operating temperature: 0–40°C
Storage temperature: -10–50°C
Operating humidity: 20–80% RH
Storage humidity: 10–90% RH
Maximum operating altitude: ≤2000 m
Safety standards: CE EN61326-1:2013, EN61326-2-2:2013
Net weight: transmitter 87 g, receiver 51 g
Dimensions: transmitter 102 × 62 × 28 mm; receiver 102 × 37 × 28 mm
Color: red-gray
How to use
Insert a 9V battery, connect the transmitter and receiver to the cable using the appropriate connector (RJ45, RJ11 or BNC with adapter) and press the single control button to start the test. Observe the LED sequence in the selected test mode (fast or slow) to identify continuity, open circuits, short circuits or crossed pairs. The tester will automatically switch off after 10 minutes of inactivity; replace the battery when the low-battery indicator activates.
Recommendations
Use the UT681C with cables disconnected from live equipment. For accurate diagnosis, test each cable end-to-end and, when necessary, repeat checks in both fast and slow modes. Store the tester within the specified temperature and humidity ranges to maintain performance.

## FAQ

### How much does the Network Cable Tester Unit UT681C cost, and is it available for purchase?

The price is 15.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 45 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 26.06.2026 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 Unit 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 Unit 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/11631261/66853510_large.webp