Features: This digital thermometer has an in-built sensor that provides precision to measure the exact space you want. Non-contact industrial thermometer with a 12-point temperature test area indication. Temperature difference alert, easy to set maximum and minimum temperature limits. Four Types Available: IR01A temperature range is -50~380°C, IR01B temperature range is -50~550°C, IR01C temperature range is -50~550°C with ambient temperature and humidity, IR01D temperature range is -50~800°C with ambient temperature and humidity. Adjustable emissivity: widely used with an adjustment range of 0.10-1.00. This thermometer is lightweight and portable. It fits perfectly in your pocket or backpack, allowing you to take it anywhere and use it anytime. LCD Display: Digital LCD display with backlight for easy reading. Specifications: Name: IR01A Industrial Infrared Thermometer Color: Black Type: IR01A, IR01B, IR01C, IR01D (optional) Material: ABS Plastic Measuring Range: IR01A: -50~380°C IR01B: -50~550°C IR01C: -50~550°C with hygrometer IR01D: -50~800°C with hygrometer Ambient temperature: -10~60°C (IR01C) Ambient humidity: 0%~100% Laser: <1mW / 630-670nm Level 2 Response spectrum: 8-14μm Response time: <0.5s Emissivity: 0.10-1.00 adjustable D:S: 12:1 Operating Temperature: 0~40°C Storage Temperature: -10~60°C Automatic shutdown: 30 seconds Power Supply: 2 * 1.5V AAA Batteries (Not Included) Package Size: 193*121*51mm Package Weight: 217g Package List: 1 * Thermometer, 1 * User Manual