Features: Made of premium and durable materials. Small, lightweight and convenient to carry, designed with a lanyard to keep it from getting lost. Fine workmanship and high precision. Easy to use and easy to clean when dirty. Description: Display: 3 numbers on the LCD screen. Temperature range: -50°C to 300°C (-58°F - 572°F), Accuracy: ±2% or 2°C, Repeatability: 1% or 1°C, Response time: ≤ 0.8 sec, Emission : 0.95 as default (adjustment range 0.1-0.99), Working environment: 10°C to 40°C, Relative humidity: 10%-90RH, Storage temperature: -10°C to 40°C, Power: 2 AA batteries AA (1.5V/each) (included) Spot Distance Ratio: 2:1 Recommended Measuring Distance: 20mm to 130mm Resolution: 0.1°C or 0.1°F Measurement Tips: If the surface of the object is covered with frost Or dust or other substances, please clean the surface to get accurate measuring result. If the surface of the object to be measured is highly reflective with very low emissivity value, please apply adhesive tape or apply black paint to the surface to improve accuracy. Press button ② and turn on the unit, the meter will automatically turn off after 10 seconds without operation. Specifications: Box: Yes Size: 8.0 x 5.0 x 2.35cm Color: Black Package Contents: 1 x Digital LCD Infrared Non-Contact Thermometer 2 x AAA Batteries (1.5V/each)