Model Number:PTH-9BW Smart home platform:Tuya Air Quality Level:0 ~ 500 Carbon Dioxide:400 ~ 5000 ppm Temperature:-10C ~ 40C/14 ~ 104 Color: As Shown Material: plastic Humidity:20 ~ 80 % RH HCHO:0 ~ 2 mg/m3 TVOC:0~ 5 mg/m3 C6H6:0~ 3 mg/m3 PM10:0 ~ 1000 g/m3 PM2.5:0 ~ 1000 g/m3 Wireless Connection:Wi-Fi -only for 2.4GHz network Battery Spec:Li-ion Cylindrical Battery Input:5V/1A Key :Thermohygrometer,CO2 detector,air quality sensors,tuya co2,gas detector,meter Package Contents: 1 x TYPE-C Cable 1 x PTH-9BW Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.