This is a small Digital , made of and safe materials, durable and can be used for a long time. It can test indoor temperature and humidity. Compared with the key products on the market, the household temperature and humidity meter is easier to read. Features - ColorWhite -Material:ABS - Size: 9.50X8.00X3.00cm/3.73X3.14X1.18in -Temperature range: -10-70 degree centigrade, 14 to 158 fahrenheit scale. -Temperature Deviation:±1 degree centigrade -Humidity Deviation:±5%RH -Detection cycle :5 seconds -Note:It is powered by 2 x AAA batteries(not involved). -Manufactured with ABS material, you can keep it for a long term. Digital hygrograph with large screen showing temperature and humidity. -Compared with the key products on the market, the household temperature and humidity meter is easier to read. -Large screen digital and hygrometer can be used in incubators, feeding rooms, rooms, hospitals and other occasions. -Small design, easy to put it on table-top. Measure indoor temperature and humidity. -Accurate temperature and humidity monitoring, allowing you to adjust the indoor environment at any time to avoid colds, multi-function , can display temperature, humidity, time and calendar. Package list: 1 x Hygrometer