Professional digital LCD display infrared thermometer for measuring the surface temperature of an object. Non-contact Measurement: Measures various hot, hazardous, or hard-to-reach surfaces without contact, providing convenient and safe operation. Measurement Range: -50°C to 400°C / 600°C (-58°F to 752°F / 1112°F) with selectable Celsius (°C) and Fahrenheit (°F) units. Low Power Consumption & Auto-off: Powered by 2 x 1.5V AAA batteries (not included). Automatically shuts down after 30 seconds of inactivity. Low battery indicator displayed in the upper right corner. Data Reading: HD colored LCD screen with backlight and data hold function for clear and accurate readings. Additional Features: Adjustable emissivity from 0.1 to 1.0 (factory preset at 0.95), high and low temperature alarms, laser pointer on/off setting. Wide Applications: Suitable for non-contact temperature measurement of automotive engines, air outlets, air conditioning systems, ovens, food, and more. Model: IR03A / IR03B (Optional) IR03A: - Infrared Measurement Range: -50°C to 400°C (-58°F to 752°F) - Accuracy: -50°C to 0°C (-58°F to 32°F): ±3°C (±3°F); 0°C to 400°C (32°F to 752°F): ±(1.5% of reading + 2°C/4°F) IR03B: - Infrared Measurement Range: -50°C to 600°C (-58°F to 1112°F) - Accuracy: -50°C to 0°C (-58°F to 32°F): ±3°C (±3°F); 0°C to 600°C (32°F to 1112°F): ±(1.5% of reading + 2°C/4°F) Material: ABS Emissivity: 0.1 to 1.0 Field of View (D:S Ratio): 12:1 Spectral Response: 8~14 μm Laser Pointer Class: Class 2 Laser Output Power: <1 mW Laser Wavelength: 632~690 nm Response Time: <0.5 seconds Automatic Power-off: 30 seconds Operating Temperature: 0°C to 40°C (32°F to 104°F) Storage Temperature: -10°C to 60°C (14°F to 140°F) Power Supply: 2 x 1.5V AAA battery (not included) Item Size: 150 x 73 x 44 mm / 5.91 x 2.87 x 1.73 in Item Weight: 108 g / 3.81 oz Package Weight: 171 g / 6.03 oz Package Size: 17.5 x 9.5 x 5 cm / 6.89 x 3.74 x 1.97 in Packing List: 1 x Digital Thermometer