Built-in semiconductor air sensor and temperature/humidity sensor for sensitive and quick detection of HCHO, CO2, VOC, temperature, and humidity. Connect to APP via ZigBee/WiFi for real-time display of detection values. Preset alarm values to trigger automatic alarm when exceeded. Work with Tuya App for voice control, compatible with Google Home for convenient operation via simple commands. Supports intelligent linkage with air conditioners, fresh air fans, humidifiers, air purifiers, etc., to automatically optimize air environment. Durable PVC housing, sturdy and fall-resistant with multiple vents for better ventilation and accurate detection. Suitable for home, office, school, warehouse, agricultural planting, etc. Supports desktop or wall mount installation. Color: As shown. Specifications: Material: PVC; Working Voltage: 5V, 1A; Working Current: 10-496mA; Communication Protocol: ZigBee/WiFi(optional); Working Temperature: -20-85°C; HCHO Ranges: 0-10.00mg/m³; VOC Ranges: 0-99.9ppm; CO2 Ranges: 350-2000ppm; Temperature Ranges: 0-60°C; Humidity Ranges: 0-95%; Item Size: 100*100*35mm; Package Size: 110*110*40mm; Package Weight: 100g. Packing List: 1* Air Quality Monitor, 1* USB Cable, 1* User's Manual.