3-in-1 Air Quality Detector Real-Time Carbon Dioxide Humidity Temperature Monitoring 28-inch Color Screen Calibration Feature: 1. Real-Time Air Quality Monitoring: This 3-in-1 air detector provides real-time monitoring of Carbon Dioxide, humidity, and temperature levels, ensuring you have comprehensive insights into your indoor air quality. Suitable for homes, offices, and gyms, it helps you maintain a fine living environment. 2. Highly Precise Sensing Unit: Equipped with a highly precise sensing unit, this air quality meter accurately measures air data, providing you with a clearer view and greater peace of mind. The 2.8-inch high-definition color screen displays all data and environmental conditions clearly. 3. Long Battery Life and Easy Calibration: With a 1200mAh high-capacity lithium battery, this device offers over 20 hours of standby time on a full charge. It supports easy calibration, ensuring accurate readings. Simply reboot in a good environment or activate the calibration function for automatic calibration. 4. Humanized Design with Manual Screen-Off Function: Designed with a focus on user comfort, this air quality detector features a manual screen-off function. Press the power button four times to turn off the screen, creating a comfortable testing environment without distractions for nighttime activities. 5. Wide Application Scenarios: Ideal for various settings including study rooms, yoga studios, offices, homes, gymnasiums, and cars, this air quality monitor helps you monitor environmental conditions in real-time. It's suitable for anyone looking to improve their indoor air quality and ensure a healthier living space. Specification: Item Type: Air Quality Detector Detection Range: Carbon Dioxide: 400-5000 PPM Temperature: 0-50℃ Humidity: 5-90% RH Display Panel: LDC Screen Battery Capacity: 1200mAh Material: ABS Package List: 1 * Air Quality Detector 1 * Charging Cable 1 * User Manual : : _x000D_ _x000D_