[Retracted] Environmental Monitoring and Restoration of Ecological Cycle Index System Based on IoT Agriculture

Table 5

Performance specifications of the PM2.5 sensors.

Serial number	Parameter	Size	Unit
1	Range	0–999.9	ug/m^3
2	Supply voltage	150 ± 30	V
3	Maximum operating current	<25	nA
4	Response time	<0.5	s
5	Diameter resolution	−20∼+50	um