# OBDII diagnostic tester QOLTEC ProLine (model 50684)

**URL:** https://aio.lv/en/product--qoltec-50684--11506983
**Data updated:** 2026-02-15 12:43 (EET)
**Category:** Car Supplies
**Manufacturer:** QOLTEC
**Manufacturer code:** 50684
**EAN:** 5901878506845
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 21.49 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 17.76 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--qoltec-50684--11506983

## 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

OBDII diagnostic tester QOLTEC ProLine (model 50684) is a vehicle fault code reader for cars with OBDII interface. It reads and clears diagnostic trouble codes, displays live data and basic vehicle information to help identify engine and emission system issues. Portable and simple to use for routine checks, troubleshooting and maintenance, suitable for DIY users and professional workshops.

## Long description

The OBDII diagnostic tester QOLTEC ProLine (model 50684) is a compact vehicle fault code reader designed for cars equipped with an OBDII interface. The device connects to the vehicle diagnostic port to read and clear diagnostic trouble codes, display live sensor data and provide basic vehicle information. It is intended for routine checks, troubleshooting and maintenance to help identify issues related to engine operation and emission systems. The tester is portable, straightforward to operate and suitable for both DIY users and professional workshops.
Advantages
The QOLTEC ProLine OBDII tester offers immediate access to stored and pending fault codes and allows users to clear codes after repairs. It displays live data streams from engine sensors, enabling real-time monitoring of parameters such as engine speed, coolant temperature and fuel system status. The unit’s compact form factor and plug-and-play operation make it convenient for on-vehicle diagnostics, while its compatibility with standard OBDII protocols ensures broad vehicle coverage for gasoline and many diesel engines. The device’s clear readouts simplify fault identification and support faster troubleshooting.
Suitable for
Routine pre-trip and maintenance checks
Identifying and clearing engine and emission-related fault codes
Real-time monitoring of basic sensor data during test drives
Use in home garages by DIY enthusiasts
Supplementary diagnostics in small professional workshops
Key specifications
Interface: Standard OBDII connector for 16-pin vehicle diagnostic port
Functions: Read and erase diagnostic trouble codes, display live data, show basic vehicle information
Display: Built-in screen for code and live parameter visualization
Power: Powered directly from vehicle diagnostic port when connected
Compatibility: Works with vehicles supporting OBDII protocols (cars with OBDII port)
Portability: Lightweight, handheld design for on-vehicle use
How to use
Locate the vehicle’s OBDII diagnostic port, usually under the dashboard near the steering column. With the vehicle ignition in the ON position (engine running if required by the vehicle manufacturer), plug the tester into the 16-pin port. The device will power on from the vehicle port and begin communication with the vehicle control modules. Use the on-screen menu to read stored and pending codes, view live data streams and access basic vehicle information. After repairs, use the clear function to erase codes and confirm system status. Disconnect the device when testing is complete.
Usage recommendations
Use the tester in accordance with the vehicle manufacturer’s safety instructions: ensure the vehicle is stationary and in a safe state when performing diagnostics, and avoid interfering with moving parts during test drives. Interpret diagnostic codes as guidance for troubleshooting; for complex faults or safety-related issues, consult a qualified technician or workshop.

## FAQ

### How much does the OBDII diagnostic tester QOLTEC ProLine 50684 cost, and is it available for purchase?

The price is 21.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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 QOLTEC 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 QOLTEC 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/11506983/66523087_large.webp