Features: This digital thermometer has a built-in sensor that gives you the precision to zero in on the exact space you want to measure. non-contact industry thermometer with 12 point temperature test area indicates. Difference alert temperature, easy to set maximum/minimum temperature. Four types are available: IR01A temperature range is -50~380degree, IR01B temperature range is -50~550 degree, IR01C temperature range is -50~550 degree with ambient temperature and humidity, IR01D temperature range is -50~800 degrees at room temperature and humidity. Adjustable Reflectivity: Widely used with Adjustment Range: 0.10 to 1.00. This thermometer is lightweight and portable. It will perfectly fit your pocket and backpack. So you can take it anywhere and anytime use it. LCD display: LCD display with backlight for easy reading. Features : Name : IR01A Industrial Infrared Thermometer Black color Type: IR01A, IR01B, IR01C, IR01D (optional) Material: ABS plastic Measuring range: IR01A: -50~380 degree IR01B: -50~550 degree IR01C: -50~550 degree with IR01D hygrometer: -50~800 degree with hygrometer Ambient temperature: -10 to 60 (IR01C) ambient humidity: 0% to 100% Laser: