UNI-T UT303A+ Industrial Infrared Thermometer. It is a professional, non-contact digital temperature gun designed for industrial inspection, electrical maintenance, HVAC troubleshooting, and mechanical diagnostics.
Key Technical Specifications
Temperature Range: -32.0°C to 800.0°C (-25.6°F to 1472°F), as printed directly on the side sticker of the tool.
Distance-to-Spot (D:S) Ratio: 30:1. This means that at a distance of 30 inches, the device measures a surface area circular spot of 1 inch in diameter, allowing for safer, long-distance target scanning.
Accuracy: ±1.5°C or ±1.5% of the reading (whichever is greater) for temperatures above 0°C.
Response Time: Rapid sampling under 250ms.
Emissivity: Fully adjustable from 0.1 to 1.0, with options to store up to 5 preset surface material constants.