# UNI-T UT691-10 Optical Fiber Cable Tester, 650nm Laser, 10mW, 10km Range, 3.7V 1050mAh Battery, IP54

**URL:** https://aio.lv/en/product--unit-ut691-10--11274971
**Data updated:** 2026-05-22 07:20 (EEST)
**Category:** Cable testers
**Manufacturer:** Unit
**Manufacturer code:** UT691-10
**EAN:** 6935750569115
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 29.49 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 24.37 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--unit-ut691-10--11274971

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 01.07.2026 | free |
| Pickup points | 06.07.2026 | 1.99 EUR |
| Courier delivery to door | 06.07.2026 | 4.99 EUR |

## Summary description

The UNI-T UT691-10 is a professional optical fiber cable tester featuring a 650nm laser source with 10mW output power. Designed for fault location and continuity testing, it supports a range of up to 10km. The device is powered by a 3.7V 1050mAh rechargeable battery and features an IP54-rated housing for durability in field conditions. It is an essential tool for network technicians performing fiber optic installation and maintenance.

## Long description

The UNI-T UT691-10 is a professional-grade optical fiber cable tester designed for precise fault location and continuity verification in fiber optic networks. Utilizing a 650nm laser source with 10mW output power, this device provides reliable performance for identifying breaks, bends, or faulty connections over distances of up to 10km. Built for demanding environments, the tester features an IP54-rated housing that offers protection against dust and water splashes, making it a dependable choice for field technicians and network installers.
Advantages
This optical fiber tester stands out due to its combination of high-precision laser output and robust physical construction. The integrated 1050mAh rechargeable battery ensures long-lasting operation during extended maintenance sessions, reducing the need for frequent charging. Its compact design and intuitive interface allow for rapid deployment, while the 10km range provides sufficient coverage for most local area network and fiber-to-the-home installations. The IP54 rating ensures that the device maintains operational integrity even when used in challenging outdoor or industrial conditions.
Suitable for
Identifying fiber breaks and macro-bends
Continuity testing of optical fiber cables
Fiber optic network installation and maintenance
Troubleshooting local area networks and fiber-to-the-home systems
This device may not be suitable for testing extremely long-haul fiber optic lines exceeding 10km or for applications requiring high-power laser sources beyond 10mW. It is not designed for measuring signal attenuation or performing complex optical power analysis.
Key specifications
Laser wavelength: 650nm
Output power: 10mW
Maximum testing range: 10km
Battery capacity: 3.7V 1050mAh rechargeable
Ingress protection: IP54
To use the UNI-T UT691-10, connect the fiber optic cable to the output port of the device. Ensure the connector type is compatible with your cable. Power on the unit and select the desired laser mode to emit the light signal. Observe the cable for any visible light leakage, which indicates a break or a significant bend in the fiber. Always ensure the fiber end faces are clean before connection to maintain signal integrity.
What to consider before purchase
Verify that the connector type matches your specific fiber optic infrastructure
Ensure the 10km range is sufficient for your typical installation requirements
Confirm that the 650nm laser wavelength is appropriate for your testing needs
Always wear appropriate eye protection when working with laser devices and never look directly into the laser output port or the end of the fiber optic cable while the device is active.

## FAQ

### How much does the UNI-T UT691-10 Optical Fiber Cable Tester cost, and is it available for purchase?

The price is 29.49 € (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 01.07.2026 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 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/11274971/63883835_large.webp