4.9" LCD Wi-Fi Weather Sensor with CO Detector & Multi-Channel Temp/Humidity Sensor by ecowitt

The WN1821 IoT Wi-Fi Weather Sensor, featuring a 4.9-inch LCD display with integrated CO₂ detector and WN31(WH31) multi-channel temperature/humidity sensor, is a high-resolution IoT weather station equipped with a 4.9-inch LCD display and built-in Wi-Fi gateway. It enables users to monitor time, temperature, humidity, and CO₂ levels. Compatible with various other sensors like WS90, WS69, WS68, WS80, WH40, WN31 (up to 8), WH51 (up to 8), WH41/WH43 (up to 4), WH45, WH57, WH55 (up to 4), WN34 S/L (up to 8), WN35 (up to 8), WFC01/AC1100 (up to 16), it connects via Wi-Fi and uploads data to weather servers (Wunderground, Weathercloud, WeatherObservationswebsite). This sensor offers indoor weather monitoring, including CO₂ detection, with a capacity of up to 40000 ppm.

• Indoor Weather Monitoring with CO₂ Detection: Keep track of your indoor climate with built-in CO₂ detection
• 4.9" LCD Display & Integrated Wi-Fi Gateway: View and control your weather data on the 4.9" LCD display with built-in Wi-Fi connectivity
• Multi-Functional Display: Monitor time, temperature, humidity, barometric pressure, and CO₂ PPM levels all on one screen
• Sensor Compatibility: Compatible with a wide range of sensors, including WS90, WS69, WS68, WS80, WH40, WN31 (up to 8), WH51 (up to 8), WH41/WH43 (up to 4), WH45, WH57, WH55 (up to 4), WN34 S/L (up to 8), WN35 (up to 8), and WFC01/AC1100 (up to 16)
• Wi-Fi Data Transmission: Connect to Wi-Fi and upload data to weather servers like Wunderground, Weathercloud, and WeatherObservationswebsite
• Power Supply & Adaptive Brightness: Powered by DC, with support for background light brightness adjustment