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    Contactless Infrared Red Thermometer

    SISCO non-contact infrared red thermometer series includes three models (UT301A+, UT302A+, UT303A+). These infrared thermometers have a maximum temperature range of up to 800°C, with an accuracy of ±1.5%, and are easy to operate.
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    📅 Delivery: 7-12 days

    The no touch ir red thermometer series features adjustable high and low-temperature visual and audio alarms, with a response time of less than 250ms. The emissivity is adjustable, and it can store up to 5 preset emissivity settings. Additionally, it is equipped with a trigger lock function, maximum/minimum/average value hold function, and comes with a tripod stand, making it ideal for monitoring temperature in various process applications.

    Contactless infrared red thermometer details

    High-Efficiency Temperature Measurement

    • 12:1 D:S ratio.
    • Adjustable emissivity 0.1~1.0.
    • ±1.5℃ temperature measurement accuracy.
    • High contrast EBTN color display.
    • MAX/MIN/AVG/DIFF/Hold modes.
    Contactless infrared red thermometer function details

    High and Low Temperature Alarm Function

    • With red/green/blue three-color LED and buzzer sound alarm prompt functions, abnormalities can be quickly detected.
    • HI alarm: When the temperature exceeds the set maximum temperature, the LED indicator turns red and an alarm sounds.
    • LO alarm: When the temperature is lower than the set minimum temperature, the LED indicator turns blue and an alarm sounds.


    The advanced and professional ir non-contact thermometer from SISCO features fast response speed, high accuracy, and strong sensitivity. It is an essential tool for engineers and technicians in various fields, including power distribution inspection, HVAC maintenance, transportation equipment inspection, and equipment repair. These attributes make it indispensable for professionals dedicated to maintaining and optimizing technical systems, ensuring safety, efficiency, and reliability in their operations.

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    Optical Resolution 12:1 (calculated at 95% energy) 20:1 (calculated at 90% energy) 30:1 (calculated at 90% energy)
    Temperature Range -32°C~420°C / -25.6°F~788°F -32°C~700°C / -25.6°F~1292°F -32°C~800°C / 25.6°F~1472°F
    LCD Size 30*30mm 35*35mm
    LCD Display EBTN color screen
    Accuracy <0°C: ± (1.5°C+0.1°℃/°C);
    ≥0℃: ± 1.5°C or ± 1.5% of reading
    <32°F: ± (3.0°C+0.1°F/°F);
    ≥32°F: ± 3.0°F or ± 1.5% of reading
    Temperature Coefficient ± 0.1°℃/°C (±0.1F/°F) or,
    ± 0.1% of reading per degree
    Repeatability 0.7°C or 0.7%, (1.5F or 0.7%)
    Emissivity 0.1~1.0 (adjustable, 5 groups of reserve values can be set)
    Response Time < 250ms (95% of reading)
    Spectral Response 8um~14um
    Automatic Shut-Down 15s
    Low Voltage Indication
    High and Low Temperature LED Alarm
    High and low Temperature Sound Alarm
    Digital Hold
    Unit Conversion (°C/°F)
    Lock Measurement
    Laser Single laser aiming, wavelength 630nm~670nm, output power <1mW, Class 2 laser product
    Battery Type 9V battery (6F22)
    Weight 204 g 310 g 310 g
    Dimensions 161.5x90x48mm 179x126.5x53mm

    Packing List

    • 1 x Infrared Thermometer
    • 1 x Bag
    • 1 x Box
    • 1 x Battery

    Contactless infrared red thermometer packing list


    Q1: What are some applications of infrared thermometer in industry?
    A1: Infrared thermometers find numerous applications across various industries due to their non-contact nature, speed, and accuracy. Some common industrial applications include: manufacturing, HVAC(Heating, Ventilation, and Air Conditioning), electrical maintenance, food processing, metallurgy, automotive, building inspection, firefighting etc.

    Q2: How do you store an infrared thermometer?
    A2: When storing your infrared thermometer, choose a clean, dry spot away from extreme temperatures. Keep it protected in its case to prevent dust buildup and damage. Regularly check for signs of wear or damage to maintain its accuracy.

    Q3: How far away should you hold an infrared thermometer?
    A3: The distance at which you should hold an infrared thermometer depends on its spot ratio, which is the ratio of the distance from the thermometer to the object being measured to the diameter of the measurement area. Typically, the manufacturer specifies the spot ratio for the thermometer. As a general guideline, hold the thermometer at a distance that ensures the measurement spot covers the entire target area, ensuring accurate readings.

    Tips: How does a infrared thermometer work?

    An infrared thermometer works by detecting infrared radiation, a type of electromagnetic radiation that objects emit as a function of their temperature. Here’s a step-by-step explanation of how it operates:

    1. Emitted Infrared Radiation: All objects emit infrared radiation proportional to their temperature. The hotter the object, the more infrared radiation it emits.

    2. Detection: The infrared thermometer has a lens that focuses this emitted infrared radiation onto a detector, typically a thermopile or pyroelectric sensor.

    3. Conversion to Electrical Signal: The detector converts the infrared radiation into an electrical signal. The intensity of the radiation (which correlates with the temperature of the object) determines the strength of the electrical signal.

    4. Signal Processing: The electrical signal is processed and converted into a temperature reading. The thermometer uses algorithms to account for emissivity (how effectively an object emits infrared radiation) and other factors to ensure accurate temperature measurement.

    5. Display: The processed temperature reading is then displayed on the thermometer's screen, providing the user with the temperature of the target object.

    In summary, an infrared thermometer measures the infrared radiation emitted by an object and converts it into an electrical signal, which is then processed and displayed as a temperature reading.


    Thank you for buying industrial test and measurement equipment on, all products sold by SISCO and the partner cover a 12 months warranty, effective from the date of receiving the products.

    What is covered?

    SISCO is responsible for providing free spare parts, and free technical support to assist the customer to repair the defective products until the problem is solved.

    What is not covered?

    • Product purchased from anyone other than a SISCO store or a SISCO authorized reseller.
    • Expendable parts.
    • Routine cleaning or normal cosmetic and mechanical wear.
    • Damage from misuse, abuse or neglect.
    • Damage from use of parts other than SISCO approved.
    • Damage from use outside the product’s usage or storage parameters.
    • Damage from use of parts not sold by SISCO.
    • Damage from modification or incorporation into other products.
    • Damage from repair or replacement of warranted parts by a service provider other than a SISCO authorized service provider.
    • Damage caused by the application environment not meeting the product usage requirements and the failure to perform preventive maintenance.
    5.0 1
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    Vieva | 6/28/2024 2:34 AM
    Works easily and perfectly
    It's one of the more affordable infrared thermometers and has proven to be consistently accurate, especially at lower temperatures. I tested its accuracy by aiming it at ice, knowing the expected temperature, and it read within 1 degree of freezing—pretty impressive. recommend!