Color: Black Does not include battery Main Features: 1. Reads and displays indoor and outdoor temperature and humidity 2. Indicates indoor and outdoor temperature and humidity trends 3. Weather forecast for the next 12-24 hours (80% accuracy) 4. Records maximum and minimum indoor and outdoor temperature and humidity 5. Time display (12H/24H switchable), calendar (month/day/day-month switchable), weekday 6. Alarm clock with snooze function (snooze time: 5 minutes) 7. White backlight illuminates for 20 seconds when the top button is pressed, allowing for easy reading in dark environments 8. One host can connect up to 3 sensors simultaneously. Press the CH button on the host to view temperature and humidity from different sensors 16-in-1 multifunctional design: This is not only a traditional weather station, but also functions as a display with external sensor, alarm clock with snooze, night light, calendar, 12/24-hour time display, and more. Controls and stand feet are located on the back for secure placement 2021 new design with backlight: Modern and elegant weather station with external sensor, featuring graphical display of temperature and weather trends for the next 12 hours. The large, extended display clearly presents all measured values. Supports synchronization with up to 3 outdoor sensors 10-second quick response and high accuracy: Temperature and humidity data updates every 10 seconds, with high sensitivity and fast display response. Achieves high accuracy through stable thermal sensors and optimized ventilation design, along with exterior sensors for broader detection range 12- to 24-hour weather forecast: Graphically displays upcoming weather trends. The device uses Weather Forecast 2.0 technology to predict weather conditions based on real-time humidity and temperature measurements, helping support a healthier lifestyle High-quality product