[MINI INDOOR HYGROMETER]: The diameter of this small analog indoor thermometer is 2.24 inches (57mm), mini size is good for incubators, larger chickens, reptile terrariums, frog tank, bearded dragon habitat, do not occupytoo much.a lot of room.With high accuracy in +- 5℉ temperature and +- 7% humidity, also good for cigar humidors and mason jars, guitar case[TEMPERATURE HUMIDITY MONITOR ENGINE]: Battery-free analog thermometer, saves time and money for changing batteries, like other digital indoor thermometers.With a mounting hole on the back of this thermometer, you can hang it on the wall to monitor temperatures for basement, garage, home safes, room, even RV or motorhome, and the small round shape makes it a good decoration for your home, the kitchen of the room[OLD SCHOOL RELIABILITY THERMOMETER/HYGROMETER]: The green color with analog round shape and aluminum housing makes this mini indoor thermometer look really chic and elegant, and the measuring range of the thermometer between -20 and 120 °F (-30 and 50 °F) C), humidity from 10-100% RH, same as most analogue indoor outdoor thermometers and hygrometers on the market for looks and accuracy, it makes a great gift ideaNote: This description was automatically translated into Romanian.If you have any questions, please contact us promptly