With material, it is great for you to use it as a indoor humidity meter for your house, bedroom, kids room, garage, workshop, barn, basement and even your . Or as a outdoor analog hygrometer for your patio and your greenhouse. Feature - Color: As Shown. - Material: Plastic. - Size: 7 x 7 x 1.5cm. - Measurement Range: - 30 C - 50 C Error (+2 C). - Humidity: 20%-100% error (+5%). - Size: 75 mm diameter. - Great accurate readings with this Mini Digital which has a simple appearance, unobtrusive design. - Made of durable materials, for use in refrigerators, chillers and deep freezes, the has a range of -30 degree to + 50 degree. - Size of the Refrigerator Freezer Digital makes it for any situations. where you need an accurate reading and the easy-to-read screen show the of the environment in Celsius. - Modern type and hygrometer, dial with easy-to-read scale. Package list: 1 x Hygrothermograph