Long transmission range thermometer hygrometer connected to a radio transmitter with strong wireless signal penetration (433 MHz frequency). Offers a wide transmission range of 30-100m (98-328ft) in open areas, ensuring fast and reliable signal reception within the transmission area. Multifunction indoor and outdoor thermometer for healthy living, accurately measuring temperature and humidity levels both indoors and outdoors. Ideal for use in homes, offices, workshops, and similar environments. Features accurate readings with a large LCD display for clear and easy viewing. Measures indoor temperature from 0°C to 60°C (32°F to 140°F), outdoor temperature from -40°C to 60°C (-40°F to 140°F), and humidity from 10% to 99%, with accuracy within ±1°C and ±5%. Automatically updates data every 60 seconds (sensor stabilizes in approximately 30 minutes). Easy to use with convenient button controls for switching temperature units.