Measure fine particulate & air pollution levels in and around your home
The sensor is a high quality Sensirion Particle Sensor
Send data to the Ambient Weather Network, create alerts, and connect to Google Home or Amazon Alexa
Sensor Dimensions: 2.8 x 4.0 x 2.7 in
Solar powered; 2 x AA 1.2V LSD type NI-MH battery backup (included)
Note; The PM2.5 Meter works with Ambient Weather Model WS-2000, and the ObserverIP Module (WS-0800-IP, WS-0900-IP, WS-1200-IP, WS-1400-IP, WS-1550-IP, WS-1600-IP). Place the PM2.5 indoor / outdoor sensor anywhere in and around your home with the wireless PM2.5 particulate monitor. Sends data to AmbientWeather.net where you can monitor and analyze the air quality. Send alerts. Works with Google Home and Amazon Alexa. Includes a solar collector and rechargeable batteries. A USB port allows you to charge the batteries where there is no sunlight. The sensor is a high quality Honeywell HPM Series Particle Sensor. PM2.5 refers to particles that are 2.5 microns or smaller in diameter. The high quality Honeywell HPM Series Particle Sensor uses laser scattering to radiate suspending particles in the air, then collects scattering light to obtain the curve of scattering light change with time. The microprocessor calculates equivalent particle diameter and the number of particles with different diameter per unit volume. The following describes the Air Quality Index (AQI) vs. PM2.5 breakpoints. AQI Category: Breakpoints Good: 0.0 - 12.0 (µg/m3 Moderate: 12.1 - 35.4 (µg/m3) Unhealthy for Sensitive Groups: 35.5 - 55.4 (µg/m3) Unhealthy: 55.5 - 150.4 (µg/m3) Very Unhealthy: 150.5 - 250.4 (µg/m3) Hazardous: 250.5 - 350.4 (µg/m3) Extremely Hazardous: 350.5 - 500 (µg/m3).