Zigbee Air Box Tuya Smart 5-in-1 Formaldehyde CO2 Temperature Humidity Tester Smart Home Air Monitor ?[Five-in-one] Smart air quality detector,real-time monitoring of 5 environmental parameters such as HCHO,VOC,carbon dioxide,temperature,humidity,etc.,always protect the health of your family ?[Multiple sensors] Built-in semiconductor air sensor and temperature and humidity sensor,sensitive response,multiple gases rapid detection,comprehensive coverage,more accurate and reliable ?[Use with APP] Connect to Tuya APP through ZigBee,real-time display of detection values,so that indoor air pollution or healthy air index can be seen at a glance. You can also preset alarm values. When the detection value exceeds the preset value,it will automatically alarm ?[Voice control] With Tuya App,the detector supports voice control,compatible with Alexa and Home,just say a simple command to operate,convenient and intelligent ?[Smart linkage] Through Tuya APP,it supports smart linkage with air conditioners,fresh air fans,humidifiers,air purifiers,etc.,automatically optimizes the air environment,and maintains a healthy living environment for you ?[Reliable quality] High-quality PVC shell,sturdy and resistant to falling,long service life. The detector has multiple vents,good ventilation,and more accurate detection of air quality ?[Wide Application] Small size,portable and practical,very suitable for home,office,school,warehouse,agricultural planting,etc. Supports 2 installation methods,can be placed on the desktop or mounted on the wall Specifications: ?Material: PVC ?Working voltage: 5V,1A ?Working current: 10-496mA ?Communication protocol: zigbee ?Working temperature: -20-85?? ?HCHO range: 0-10.00mg/m3 ?VOC range: 0-99.9ppm ?CO2 range: 350-2000ppm ?Temperature range: 0-60?? ?Humidity range: 0-95% ?Product size: 100*100*35mm/3.9*3.9*1.4 inches Package included: ?1 x Air Monitor ?1 x Charging Cable ?1 x English User Manual