Thermal Imagers

Thermal imagers detect infrared radiation and convert it into a visible heat map, allowing users to identify temperature differences without physical contact. We stock handheld thermal imaging cameras for electrical inspection, building diagnostics, mechanical maintenance, and industrial troubleshooting.

Resolution & Sensitivity

Thermal resolution in this category ranges from 160×120 pixels on entry-level models up to 640×480 or higher on professional-grade imagers, with higher resolution providing sharper detail for identifying small or precise hot spots. Thermal sensitivity, measured in mK (millikelvin), indicates how small a temperature difference the camera can detect — lower values mean finer detail in subtle temperature variations.

Temperature Range & Accuracy

Standard models typically measure from -20°C to 350°C, sufficient for most electrical and mechanical inspection work, while high-temperature models extend well beyond 1000°C for industrial process and furnace applications. Accuracy is generally rated at ±2°C or ±2% of reading, whichever is greater.

Features to Consider

Look for features like picture-in-picture (visible light overlay), adjustable emissivity settings for different material surfaces, on-screen spot temperature markers, and Wi-Fi or Bluetooth connectivity for report generation and remote viewing.

Common Applications

• Electrical panel and connection inspection
• Building envelope and insulation diagnostics
• Mechanical and bearing fault detection
• HVAC system troubleshooting
• Preventive maintenance programs

Not sure which thermal imager fits your application? Contact our team — we can help match resolution, temperature range, and features to your specific requirement.

Frequently Asked Questions

What resolution thermal imager do I need?

For general electrical and building inspection, 160×120 resolution is usually sufficient. Higher resolution (320×240 or above) is recommended for identifying small or precise hot spots at a distance.

What temperature range should I look for?

Standard -20°C to 350°C models cover most electrical, mechanical, and building diagnostic work. High-temperature applications like furnaces or industrial process monitoring require models rated well above 1000°C.

What does emissivity mean and why does it matter?

Emissivity is a measure of how efficiently a surface radiates thermal energy compared to a perfect blackbody. Adjusting the emissivity setting for the material being inspected improves the accuracy of the temperature reading.

Do you offer calibration for thermal imagers?

Yes, select models are available with a NIST-traceable calibration certificate at the time of purchase. Look for the certification filter above or contact us for a custom calibration request.