# Uni-T UT303D+ Infrared Thermometer

**URL:** https://aio.lv/en/product--unit-ut303d--12478435
**Data updated:** 2026-05-22 07:21 (EEST)
**Category:** Measuring tools
**Manufacturer:** Unit
**Manufacturer code:** UT303D+
**EAN:** 6935750530399
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 104.99 €
**Prices and availability valid until:** 2026-07-05 23:59
**Price without VAT (21%):** 86.77 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--unit-ut303d--12478435

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 30.06.2026 | free |
| Pickup points | 03.07.2026 | 1.99 EUR |
| Courier delivery to door | 03.07.2026 | 4.99 EUR |

## Summary description

The Uni-T UT303D+ is a professional infrared thermometer designed for non-contact temperature measurement. It features high accuracy and a wide temperature range, making it suitable for industrial, electrical, and HVAC maintenance applications. The device provides fast response times and clear data visualization, ensuring reliable performance for diagnostic tasks in various professional environments.

## Long description

The Uni-T UT303D+ infrared thermometer is a professional-grade instrument engineered for precise, non-contact temperature measurement across a broad range of -32°C to 1300°C. Designed for demanding industrial, electrical, and HVAC environments, this device combines high accuracy with a rapid 250 ms response time. It features a dual laser targeting system that ensures the user can pinpoint the exact measurement area with confidence, while the adjustable emissivity settings allow for accurate readings on various surface types. The high-contrast EBTN color display provides clear data visualization, making it an essential tool for diagnostic tasks where reliability and speed are paramount.
Advantages
This thermometer stands out due to its robust construction, which includes drop resistance up to 1 meter, ensuring durability in challenging work environments. The 30:1 distance-to-spot ratio allows for safe measurements from a distance, protecting the user from heat sources or electrical hazards. With advanced analytical functions such as MAX, MIN, AVG, and DIFF modes, along with the ability to store up to 99 measurements with timestamps, the device simplifies complex data collection. The inclusion of visual and audible alarms provides immediate feedback when temperature thresholds are exceeded, enhancing safety and efficiency during routine inspections.
Suitable for
Industrial equipment monitoring and maintenance
Electrical panel and component diagnostics
HVAC system performance testing
Automotive engine and brake temperature checks
Food processing and storage temperature monitoring
This device may not be suitable for medical applications, such as measuring human body temperature, as it is calibrated for industrial and technical surface measurements. Additionally, it is not intended for measuring the internal temperature of objects, as it only detects surface radiation.
Key specifications
Temperature range: -32°C to 1300°C
Distance-to-spot ratio: 30:1
Response time: 250 ms
Emissivity: Adjustable from 0.1 to 1.0
Display: EBTN color screen
Memory: Up to 99 data points
Power: 9V battery
Weight: 310 g
How to use
To begin, insert the 9V battery into the handle compartment. Power on the device and select the desired emissivity setting based on the material of the surface being measured. Aim the dual laser at the target area and pull the trigger to initiate the measurement. The result will appear instantly on the EBTN display. Use the mode button to cycle through MAX, MIN, AVG, or DIFF functions as needed. To save a reading, utilize the built-in memory function. Ensure the lens remains clean and free of dust or condensation to maintain measurement accuracy.
What to consider before purchase
Verify that the temperature range meets your specific industrial requirements.
Ensure the emissivity settings are compatible with the materials you intend to measure.
Consider the distance-to-spot ratio to ensure you can safely reach the target area.
Check if the memory capacity is sufficient for your data logging needs.
For optimal performance, always ensure the thermometer is acclimated to the ambient temperature of the work environment before use. Regularly clean the infrared lens with a soft, dry cloth to prevent measurement errors caused by debris.

## FAQ

### How much does the Uni-T UT303D+ Infrared Thermometer cost, and is it available for purchase?

The price is 104.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 80 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 30.06.2026 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, Installment. All transactions are 100% secure and encrypted.

### Can Uni-T UT303D+ Infrared Thermometer 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 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/12478435/68799356_large.webp