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header-product UNI-T UT309A Professional Infrared Thermometer -32°C to 450°C
85.58 €

UNI-T UT309A Professional Infrared Thermometer -32°C to 450°C

UNI-T UT309A Professional Infrared Thermometer Photo 1

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UNI-T UT309A Professional Infrared Thermometer -32°C to 450°C

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Short description

The UNI-T UT309A is a professional infrared thermometer designed for precise non-contact temperature measurement within a range of -32°C to 450°C. Featuring a durable build, this device is ideal for industrial maintenance, HVAC diagnostics, and electrical inspections. It provides accurate readings with a high distance-to-spot ratio, ensuring reliable performance in demanding professional environments.
Available for order: 10 pcs.
Warranty: 2 Years
SKU: 12574784
Manufacturer: Unit
free shipment

Cheapest delivery:

Venipak Pickup LV, Venipak Locker LV

Pick-up points

Venipak Pickup LV

Venipak Locker LV

Cost

1.89 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
Wednesday {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
20.07.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 €
Parcel couriers
Venipak Pickup LV / Venipak Locker LV / Latvijas Pasts pakomāts / Unisend LV / DPD Paku skapis / Omniva LV / Latvijas Pasts nodaļa
20.07.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.89 €
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3 mth. х 28.53 €

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All payment Methods:
Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment
36 months installment: from 2.38 euros per month
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Product information

Description

The UNI-T UT309A is a professional infrared thermometer engineered for precise non-contact temperature measurement across a range of -35°C to 450°C. This robust device utilizes infrared energy detection to determine surface temperatures quickly and accurately. Built to withstand harsh industrial environments, it features an IP65 ingress protection rating and is drop-proof up to 3 meters, ensuring long-term reliability for demanding field applications.

Advantages

This thermometer stands out due to its exceptional durability and rapid response time of 250ms, which allows for efficient data collection in fast-paced work settings. The inclusion of multiple scanning modes, such as MAX, MIN, AVG, and DIF, provides users with comprehensive thermal analysis capabilities. Furthermore, the device is equipped with high and low temperature alarms with clear LED indicators, a lock measurement function for continuous monitoring, and a backlit display for visibility in low-light conditions.

Suitable for

  • Electrical distribution system inspections
  • HVAC system maintenance and diagnostics
  • Transportation equipment monitoring
  • General industrial instrument repair
  • Surface temperature analysis in manufacturing

This device may not be suitable for measuring the internal temperature of objects, as it is strictly designed for surface temperature detection. It is also not intended for medical use or for measuring the body temperature of humans or animals.

Key specifications

  • Temperature range: -35°C to 450°C
  • Distance-to-spot ratio: 10:1
  • Response time: 250ms
  • Protection rating: IP65 and 3m drop proof
  • Emissivity: Fixed at 0.95
  • Laser: Single laser, Class 2
  • Power source: 9V battery

How to use

To operate the thermometer, point the sensor toward the target surface and pull the trigger to initiate the measurement. The device will display the temperature on the screen almost instantly. You can toggle between Celsius and Fahrenheit, activate the laser for precise targeting, or use the lock measurement mode for continuous scanning. Utilize the alarm settings to set specific temperature thresholds, which will trigger a visual LED alert if the measured value exceeds or falls below your defined limits.

What to consider before purchase

  • Ensure the 10:1 distance-to-spot ratio meets your specific measurement distance requirements.
  • Verify that the fixed emissivity of 0.95 is compatible with the materials you intend to measure.
  • Confirm that the temperature range of up to 450°C is sufficient for your industrial tasks.
Usage recommendations: For the most accurate readings, ensure the target surface is clean and free of obstructions. When measuring, hold the device steady and maintain a consistent distance from the target. Always store the thermometer in the provided carrying bag when not in use to protect the lens and maintain calibration accuracy.

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Customer reviews

Customer questions

FAQ

How much does the UNI-T UT309A Professional Infrared Thermometer cost, and is it available for purchase?

The price is 85.58 € (valid at the time of publication and already includes all taxes). The item is available for order — 10 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 Wednesday 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 UT309A Professional Infrared Thermometer be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. We work with leading banks and leasing companies in Latvia, allowing you to make your purchase on convenient terms — with a minimal down payment and a repayment period from 3 to 36 months. You can apply for credit or installments for the UNI-T UT309A Professional Infrared Thermometer online, and the application process is as simple as possible:
  • Select the product on the website and add it to your cart;
  • When placing your order, choose the payment method “Installments”;
  • Fill in the required details for the lending partner;
  • Receive a decision within a few minutes.
For more information about available payment options, interest-free installment terms, and credit conditions in Latvia, please visit the Payment page.

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. We will assist with consultation, warranty claim processing, and coordination with certified service centers.
warranty
14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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Fast Delivery Get your orders as quickly as possible — right to your door, parcel lockers, or pickup points across Latvia and the EU.
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Secure Payment Pay the way you prefer: cash, VISA, MasterCard, Apple Pay, Google Pay, bank transfer, or 0% installment plan.
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Quality Since 2008 AiO.lv has been on the market for over 18 years and has earned trust — with more than 6000 genuine positive reviews on Google.