Thank you for viewing. I used this for a hedgehog for about 3 years. It works without any problems. Connect it to a heating device for temperature control! The sensor detects the surrounding temperature and turns the heater ON/OFF to maintain a constant temperature. You can rest assured about temperature management when you're away from home. Control temperature range: 15-40°C Connectable heater: 310W There is no box or instruction manual. It will be shipped in simple packaging.