This hygrometer thermometer is made of premium material, which can withstand long-lasting use. Features the metalmaterial, which has high durability, not easy to deform. Fine workmanship, ensures practicality. Features -Color:Silver -Material: metal -Size:12.80X12.80X1.20cm/5.03X5.03X0.47in Test accuracy: 1C Temperature range: -30+50C Humidity range: 20-100% - The product is adapts for measuring the temperature and humidity of the instrument to the indoor environment. - It is widely used in home, office, hotel, school, workshop, laboratory, and etc. - To ensure that the indoor humidity and temperature is most fit for your needs. - The perfect workmanship and high precision will help you fast reading temperature, save time and effort. - Simple in structure, easy to use, not easy to deform, you can use it with confidence.