Etekcity Lasergrip 774 has one of the most classic designs among our infrared thermometer series. Very quality hand feeling, one button to measure, adjustment emissivity, and 2 common temperature units can fulfill the home-use needs. With a non-touch and a laser point switch design, you can measure hot or cold items at a suitable distance, such as the pizza oven, air conditioning/ AC, car engines, swimming pools, bath water, wine coolers, etc. Besides, an easy-use design also provides more convenient pet care, maintaining a comfortable temp environment for reptiles and hairless cats. Specifiction Temperature Range: -50? to 450?/ -58? to 842? Distance Spot Ratio: 12: 1 Recommended Distance: About 36 cm/ 14 inch Emissivity: 0.1-1.0 Response Time and Wavelength: 0.5 seconds Repeatability: 1%/ 1? Units: ?/ ? Batteries: 2 x AAA Batteries Product Dimensions: 6.14 x 3.15 x 1.57 inches Measurement Increments: ±2% Attention It's not for human use .