【Wide Transmission Range】The hygrometer thermometer is connected to the device. à a radio transmitter that provides high radio signal penetration (frequency 433 MHz). The thermometer has a wide transmission range (30-100 m / 98-328 feet). In the open area, the signal can be received quickly and easily. Time in the transmission area. 【Multifunction】 Indoor and outdoor thermometer for healthy living, measures temperature and humidity values. indoors and outdoors. Used mainly for measuring temperature and humidity. in homes, offices, workshops, etc. 【Accurate Reading & 【Large LCD Screen】: Large LCD screen for easy and clear display. Indoor temperature (0-60°C/32-140°F) / outdoor temperature (-40°C-60°C/-40°F-140°F), humidity (10%-99%) and the accuracy can be ± 1°C/± 5% Automatic data update every 60 seconds (about 30 minutes for the sensor to stabilize). 【Easy to use】: You can easily switch the temperature units to Celsius or Fahrenheit using the button on the top. Please note that the