Table 1.
Function and specifications of measuring device

Function	Measurement	Range	Accuracy	Resolution
Data measurement	Temperature	−40°C-60°C(−40°F–140°F)	±1°C or ±2°F	0.1°C or 0.1°F
	Humidity	1%–99%	±5%	1%
	CO2	0–40,000ppm	400-10,000ppm±(30ppm+3%)	1ppm
	PM2.5	0–999ug/m3	⟩100ug/m3,±15% ⟨100ug/m3,±15ug/m3	1ug/m3
	PM10	0–999ug/m3	⟩100ug/g/m3,±25% ⟨100ug/g/m3,±25ug/m3	1ug/m3
	Barometric	300 to 1,100 hPa (8.85 to 32.5 inHg)	±5hPa	0.1hPa(0.01inHg)
Wifi	Portable Wifi (Wifi egg)
Power supply	Supplementary battery (60,000mAh)