# Optical Time Domain Reflectometer KOMSHINE QX43-S1 43 dB Dynamic Range, 0.1 m Resolution

**URL:** https://aio.lv/en/product--oem-qx43-s1--11576642
**Data updated:** 2026-02-15 18:38 (EET)
**Category:** Cable testers
**Manufacturer:** OEM
**Manufacturer code:** QX43-S1
**Warranty:** 3 Years
**Availability:** Available for order
**Price:** 477.49 €
**Prices and availability valid until:** 2026-07-23 23:59
**Price without VAT (21%):** 394.62 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--oem-qx43-s1--11576642

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 09.07.2026 | free |
| Pickup points | 14.07.2026 | 1.89 EUR |
| Courier delivery to door | 14.07.2026 | 4.99 EUR |

## Summary description

The KOMSHINE QX43-S1 is an OTDR designed for testing and troubleshooting fiber-optic links. It offers a 43 dB dynamic range and 0.1 m resolution, enabling detection and localization of events, splices and faults over fiber runs. Suitable for installation, maintenance and field technicians, it helps verify link quality, measure loss and identify reflective events to speed diagnostics.

## Long description

The KOMSHINE QX43-S1 Optical Time Domain Reflectometer is a handheld OTDR designed for testing and troubleshooting fiber-optic links. It provides a 43 dB dynamic range and 0.1 m resolution to detect and localize events, splices and faults along fiber runs. The instrument is intended for installation, maintenance and field technicians who need precise distance-to-event measurements, loss measurements and identification of reflective events to support link qualification and rapid diagnostics.
Advantages
The QX43-S1 combines high dynamic range with fine spatial resolution to support both long-haul and short-span fiber testing. Its 43 dB sensitivity allows detection of low-level backscatter and longer links, while the 0.1 m resolution enables accurate localization of connectors, splices and micro-events. The device is focused on practical field use, enabling technicians to verify link quality, measure loss and identify reflective events without complex setup.
Suitable for
Installation testing of single-mode fiber links
Maintenance and troubleshooting of network fiber plants
Verification of splice and connector loss
Localization of faults, bends and reflective events in fiber runs
Key specifications
Dynamic range: 43 dB
Spatial resolution: 0.1 m
Measurement functions: event detection, distance-to-event, loss measurement, reflection identification
Intended fiber type: single-mode fiber links
How to use
Connect the OTDR to the fiber under test using appropriate launch and receive connectors or a launch fiber where required. Configure basic test parameters such as wavelength and test range according to the link length and test objective, then start the measurement to capture a trace. Review the displayed trace to identify events, splices and reflections and read distance-to-event and loss values. Save or export results according to your documentation workflow.
Usage recommendations
For accurate loss and event localization measurements, use an appropriate launch (pulse) cable when testing connectors or near-end events, select a test range that covers the full link plus margins, and choose a wavelength suitable for the installed fiber. Handle fiber connectors with care and perform connector cleaning before measurements to reduce reflective artifacts and ensure reliable trace interpretation.

## FAQ

### How much does the OTDR KOMSHINE QX43-S1 cost, and is it available for purchase?

The price is 477.49 € (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 09.07.2026 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, Installment. All transactions are 100% secure and encrypted.

### Can OTDR KOMSHINE QX43-S1 be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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 OEM 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 OEM 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/11576642/66614843_large.webp