This is a set of temperature humidity meter, made from , which is durable using. It can measure the temperature of pet crawler box and refrigerator, there will display on the screen, built-in probe. Small size, light weight, easy to carry or store and use. Features - Material: ABS. - Size: About 4.50X2.50X1.50cm/1.77X0.98X0.59inch. - Temperature test accuracy: ±1.0 degree centigrade. - Temperature sampling period: 10 seconds. - Relative humidity test range: 20%-90%. - Humidity display resolution: 1%. - Humidity test accuracy: ±5% (under room temperature 25 degree centigrade). - Temperature: -50-60 degree centigrade. (When the measuring temperature is lower than -50 degree centigrade, degree centigrade is displayed. When the measured temperature is higher than 60 degree centigrade, it will display H I degree centigrade). - It can measure the temperature of pet crawler box and refrigerator, there will display on the screen, built-in probe. - Small size, light weight, easy to carry or store and use. - Beautiful and practical, accurate measurement, convenient for the use of smaller breeding space. - Refresh data every 5 seconds to monitor the breeding environment at any time. - Suitable for all kinds of reptiles such as spiders, , horned frogs, lizards, chameleons, tortoises, snakes, etc. Package list: 4 x Hygrothermograph