General description This Zigbee/Tuya WIFI Smart Air Box Carbon Dioxide Detector is a high-quality device designed for remote monitoring of air quality. It can detect five environmental parameters: formaldehyde, VOC (volatile organic compounds), carbon dioxide (CO2), temperature, and humidity. When any parameter exceeds the set limits, it can automatically trigger connected smart home devices to optimize the household environment. Technical specifications Detection range: Formaldehyde: 0-10.0 mg/m3 VOC: 0-99.9 ppm Carbon dioxide: 0-1000 ppm Humidity: 0-95% Working temperature: -20 to 85°C Working voltage (rated): 4.8-12V Working current: 10-496 mA Size: 90 x 90 x 35 mm Power supply mode: USB 5V/1A Communication protocol: ZigBee 3.0 Compatibility and accessories Requires a ZigBee 3.0 gateway for operation. Usage Automatically activates smart devices based on detected air quality parameters: Smart air purifier turns on when formaldehyde/VOC levels are high. Smart fresh air fan activates