Trade Mark No.: 2022609
Quick answer: A digital infrared thermometer gun measures the surface temperature of an object without touching it. Bionics Scientific offers five industrial IR thermometer models covering -50°C to 2200°C, with distance-to-spot ratios from 8:1 to 80:1.
These non-contact instruments are used for industrial maintenance, HVAC, electrical inspection, construction and research applications. Model selection depends on the target material, expected temperature, target size, measuring distance, required accuracy and emissivity.
Product information: Page updated on 3 August 2026 by Bionics Scientific Technologies Pvt. Ltd. Specifications vary by model. Confirm the final model, measurement range, accuracy, accessories, price and delivery terms in your written quotation before ordering.
| Distance to spot ratio up to 80:1 | Audio / visual high / low temperature alarm |
| Larger measuring range | Data hold function |
| Auto power shut off | Backlit display for poorly lit areas |
| Models | BST-TG400 | BST-TG500 | BST-TG550 | BST-TG1200 | BST-TG2200 |
|---|---|---|---|---|---|
| Temperature Range | -18 to 400°C | -30 to 500°C | -50°C to 550°C | -30°C to 1200°C | 200°C to 2200°C |
| Distance to Spot Size (D:S) | 8:1 | 10:1 | 12:1 | 12:1 | 80:1 |
| Emissivity | 0.95 | 0.95 | 0.95 | 0.95 | 0.10 to 1.00 |
| Response time | 500ms | 500ms | 500ms | 500ms | |
| Accuracy | ±2%, or ±2°C | ±1.5% or ±1.5°C | ±1.5% or ±1.5°C | ±2% or ±2°C | ±2% or ±2°C |
| Laser Sighting | Yes | Yes | Yes | Yes | Yes |
| Backlight ON / OFF selection | Yes | Yes | Yes | Yes | Yes |
| HI / Low Temp Alarm | Yes | Yes | Yes | Yes | Yes |
| Holster | Optional | Optional | Optional | Optional | Optional |
| Power Supply | 9 Volt Battery | 9 Volt Battery | 9 Volt Battery | 9 Volt Battery | 9 Volt Battery |
A digital infrared thermometer measures the surface temperature of an object without physical contact. Its optics collect infrared energy emitted by the target and focus it on a sensor. The instrument processes the sensor signal and displays the calculated temperature on its LCD screen. This makes an IR thermometer gun useful for hot, moving, hazardous or difficult-to-reach surfaces.
Select the model according to the required temperature range, target size, measuring distance and surface emissivity. Available functions vary by model and include:
Distance-to-spot ratio indicates the relationship between measuring distance and target size. A higher ratio is useful when the target must be measured from farther away. Emissivity is also important because different materials emit infrared energy differently. The BST-TG2200 offers adjustable emissivity from 0.10 to 1.00 for applications involving a wider variety of surfaces.
For model selection, share your target material, expected temperature range, measuring distance and required accuracy with our team. You can also explore our complete range of laboratory and industrial measuring meters. Bionics Scientific will help you compare suitable models and provide current price and delivery information through our infrared thermometer quotation page.
A non-contact infrared thermometer gun measures the surface temperature of an object by detecting emitted infrared energy. It does not need to touch the target.
The available Bionics Scientific models cover different ranges from -50°C up to 2200°C. Select a model according to the minimum and maximum temperatures required for your application.
No. An infrared thermometer gun measures surface temperature. It does not measure the internal temperature of an object, liquid or material.
Distance-to-spot ratio describes the relationship between the distance from the target and the diameter of the measured area. The target should completely fill the instrument's measurement spot.
Emissivity affects how much infrared energy a surface emits. Shiny or reflective surfaces can require an adjustable emissivity setting or a suitable measurement method for reliable results. For deeper technical reading, see this NIST reference on radiation thermometer design.
The BST-TG2200 model provides adjustable emissivity from 0.10 to 1.00. The other listed models have a fixed emissivity setting of 0.95.
Common uses include HVAC inspection, electrical panels, motors, machinery, steam lines, furnaces, workshops, construction and laboratory surface-temperature checks.
It can be used for surface measurements where physical contact is difficult or unsafe, provided the selected model's temperature range, distance-to-spot ratio and operating instructions are followed.
Consider the target material, expected temperature range, target size, measuring distance, required accuracy and whether adjustable emissivity is needed. If you are unsure, send your infrared thermometer application details to our team.
Send your required temperature range, application and quantity through our product enquiry form. Our team will provide the suitable model, current price and delivery information.
