1. The wireless sensor uses a transmission frequency of 433.92MHz. A computer can be connected to up to 3 wireless sensors simultaneously (if there are multiple transmitters in one station, additional sensors need to be purchased to achieve this function). 2. The temperature measurement range of the host is from 0°C (14°F) to 60°C (140°F), and the humidity measurement range of the host is from 10%RH to 99%RH. The temperature measurement range of the sensor is from -40°C (-40°F) to 60°C (140°F), and the humidity measurement range of the sensor is from 10%RH to 99%RH. 3. [Multifunctional weather station with a large LCD display] The weather station is equipped with a large - color LCD display, making all important information clear at a glance: indoor and outdoor temperatures (Celsius and Fahrenheit)/humidity, maximum/minimum temperatures and alarms, weather forecasts (for 2 weeks, with 2 comfort periods), daily alarm and snooze functions, as well as switching and lunar phases. 4. [Temperature and humidity forecasting function] Real - time data is collected by the outdoor sensor. Then, relevant variables, including temperature, humidity, and air pressure changes, are monitored by indoor and outdoor wireless sensors to create a more accurate forecast for your location. 5. [Wireless weather station with 2 outdoor sensors] The weather station can simultaneously display the real - time weather of up to 2 wireless sensor channels. The wireless range of the remote sensor can reach up to 60 meters. You can place it not only in a room or basement but also outdoors. At the same time, the display is equipped with a built - in sensor that allows you to record indoor temperature and humidity data. 6. [Two power supply modes] The hygrometer thermometer is powered by an adapter (included) or AA batteries (not included). When powered by batteries, the display will automatically turn off after about 15 seconds to save power. When using the power adapter, the display will remain on. When powered by batteries, the display will automatically switch to the storage mode and automatically save all your settings. 7. Your personal weather assistant: Our indoor weather station is different from the weather forecasts you see on TV or the Internet. The weather forecast products are equipped with independent sensors that collect real - time data outdoors. They are based on weather stations that track specific weather variables to create accurate and personalized forecasts for your location. 8. Dimensions: 172*132*23mm. Quantity per shipment: one piece.