Thermometers display Fahrenheit or Celsius, 0 to 50 degrees Celsius, clear button to initial state, stand holder design, portable size and simple to operate button, Powered by button coin cell battery(included). It tracks the indoor humidity temperature and adjusts the humidifier and dehumidification settings in time. Ideal for preventing dry skin, asthma, allergies, and mold. Monitor family living conditions and health. You can use it in house,office,greenhouse, home. Custom logo is available. Price for over 15000 pcs is for sea shipment.