50%@0.3um,98%@≥0.5um Particle Mass Concentration Effective 0~500μg/m3 Range (PM2.5 standard value) Particle Mass Concentration Resolution 1μg/m3
Particle Mass Concentration
±10%@100-500ug/m3
Consistency (PM2.5 standard value)
±10ug/m3@0-100ug/m3
Comprehensive Response Time
≤10 seconds The average time that PM2.5 particle concentration sensor has no faults is 3 years. If the concentration is greater than 300 ug/m3 for more than 50% Lifetime and Product Consistency of the year, or the concentration exceeds 500ug/m3 for more than 20% of the year, the consistency of the sensor will decrease. The data may be high because of internal dust accumulation.
Frequency Range
863MHz-928MHz 470MHz-510MHz US915 20dbm
AS923
16dbm AU915 20dbm
TX Power
CN470 19.15dbm EU868 16dbm KR920 14dbm
IN865
20dbm -136dBm (LoRa,Spreading Factor=12,Bit Rate=293bps ) Receive Sensitivity -121dBm (FSK, Frequency deviation=5kHz, Bit Rate=1.2kbps)
Antenna Type
Built-in antenna 10km(visible linear obstacle-free transmission distance, actual Communication Distance transmission distance depending on the environment) LoRa: 0.3kbps~50kbps Data Transfer Rate FSK: 1.2kbps~300kbps
Modulation
LoRa/FSK (Note: choose one of them) EU863-870, US902-928, AU915-928, KR920-923, AS923-1, AS923-2, AS923-3, IN865, CN470-510 Supportable LoRaWAN Band (Note: The frequency band is optional and needs to be configured before shipment) -4-