SwitchBot CO2 monitor, CO2 meter with thermometer hygrometer, indoor air quality monitor with CO2 alarm, Bluetooth CO2 sensor with app, 2-year data storage, hub required.

"6-in-1 Multifunction Display Screen: SwitchBot Meter Pro CO2 features a large screen displaying CO2 levels, temperature, humidity, time, date, comfort level, and weather forecasts simultaneously (SwitchBot Hub required). This allows you to easily monitor your environment and decide when to ventilate to create a healthier living space. High-precision Sensor: SwitchBot CO2 Monitor is equipped with Swiss industrial grade NDIR sensors to monitor air quality by measuring CO2 levels every 1 second with an accuracy of ±50 ppm and a range of 400-9999 ppm. Its high sensitivity and stability ensure fast and accurate feedback on air quality. Multiple Alarm Methods: Customize CO2, temperature, and humidity ranges with trigger alerts. If the limits are exceeded, you will be notified through audible alarms, visual screen alerts, and app notifications (SwitchBot Hub required). This allows you to effectively monitor air quality at all times. Part of the SwitchBot Ecosystem: With Hub 2, exceeding CO2 levels can automatically activate your battery-powered fan or evaporative humidifier for improved ventilation. Hub 2 also enables voice control from third-party devices, simplifying air quality management. Portable and Durable: Our air quality detector measures 9.1 cm x 7.9 cm x 2.3 cm and weighs only 154 g. It has a built-in battery lasting up to 12 months with a low battery warning. It features wall mounting holes and an adjustable bracket for versatile placement in any environment."