This is a combination of and hygrometer for indoor use. And this practical and convenient Hygrometer Meter is a practical and useful device for home and office use. You will easily know the indoor temperature and humidity from this device. The Hygrometer is made of , durable and practical for use. Features -Color:Black -Material:Plastic -Size:12.50X12.50X2.00cm/4.91X4.91X0.79in -Temperature Test Range: 0 degree centigrade to 70 degree centigrade. -Humidity Detection Range: 20% - . -Detection cycle :10 seconds. -Note: Battery is not included. (3 x AAA batteries) -The large display shows a large number of numbers, which is very easy to read and convenient for your use. -It is very suitable for homes, offices, modern plant greenhouses, laboratories, room, hospitals and other places. -Made of and reliable materials, durable and can be used for a long time. - workmanship and good materials ensure a and perfect details. -This Hygrometer Meter is perfect for Home, Reptile Tank, Room, Office, Incubator, Garage, Basement and more. Package list: 1 x Hygrometer Meter 1 1 x Instruction Book