Feature: 1. 【Advanced Monitoring】: The 3-in-1 CO2 Monitor is equipped with a state-of-the-art 2CH NDIR sensor for accurate and reliable carbon dioxide detection. It also features a 2.4G WiFi connection and a large 7-inch LCD display, allowing you to easily monitor temperature, humidity, and CO2 levels in your greenhouse. 2. 【Convenient Control】: With the Tuya APP, you can remotely control and monitor your greenhouse environment from anywhere. The app allows you to switch between Celsius and Fahrenheit, set temperature and humidity thresholds, and even control the relay for devices such as dehumidifiers(not for humidifier), CO2 generators, air conditioners, fans, and more by the smart plug (the devices are not included). 3. 【Intelligent Light Sensor】: The built-in light sensor automatically adjusts the screen brightness at night, ensuring clear visibility without disturbing the plants. This feature allows for seamless monitoring even in low-light conditions, providing you with accurate data at all times. 4. 【Wide Measurement Range】: The CO2 Detector offers a temperature measurement range of -20°C to 60°C (-68°F to 140°F), a humidity measurement range of 5% to 95% RH, and a CO2 measurement range of 0-10000ppm. This wide range of measurements ensures comprehensive monitoring of your greenhouse environment. 5. 【Easy Installation】: The Carbon Dioxide Detector is designed for easy installation and use. Simply download the Tuya APP from the compatible with Apple App Store or Play Store, or scan the provided QR code. With its user-friendly interface and intuitive controls, you\u0027ll have your greenhouse environment monitored and controlled in no time. Specification: Product Model: GROWPT02 Product Material: ABS Product Size: Approx. 18 x 12 x 4cm / 7.09 x 4.72 x 1.57in Product Weight: 1800g / 3.97lb Product Color: White Temperature Measurement Range: -20°C - 60°C / -68 - 140°F, ±2°C/35.6°F Humidity Measurement Range: 5%-95%RH, ±5%RH CO2 Measurement Range: 0-10000ppm Resolution: 1ppm CO2 Measurement Accuracy: ±50ppm or ±5% of reading Working Temperature: 0°C-50°C / 32-122°F Working Humidity: 0-95% (non condensing) Single Output Wiring: RS485 Relay smart plug Smart Plug: Suitable for devices of dehumidifier(only), CO2 generator, A/C or Fans and main power . Package List: 1 x CO2 Detector 1 x Adapter 1 x Smart Plug 1 x Manual