SK 2 in 1 Timer and Thermometer: Specification: 11.1 * 9.9 * 4.1 cm Net Weight: 138g Material of Outer Shell: Acrylo-nitrile - Biethylene - Styrene(ABS) - Five Metals in One - Electron Temperature Measurement Accuracy: >=100oC +- 2%, <=100oC +- 2% Emissivity : 0.95 Temperature Measurement Range: -30 ~ 350oC (-22 ~ 113oF) Charging Power: 5V/1A Storing Temperature: 0 ~ 45oC (32 ~ 113oF) Measurement Distance Ratio: 12:1 Safety Standard: GB/T 22779-2017, GB/T 6592-2010 Usage: Can be used to measure temperature and as a timer.