Humidity Sensor

The humidity sensor measures water-vapour concentration in the air, reported as relative humidity (% RH). It uses capacitive sensing for accuracy across a wide environmental range.

Pro series (Air Pro 2, Modbus Pro)

In the Pro-series units the humidity sensor sits inside the SB3516 front-end module, alongside the particle, temperature, pressure, and noise sensors.

For full specifications, see the SB3516 datasheet.

Lite series (Air Lite, Modbus Lite)

The humidity sensor sits inside the SB3380 sensor dome, alongside the temperature and noise sensors.

For full specifications, see the SB3380 datasheet.

Installation

The humidity sensor isn't replaced individually — it's part of the SB3516 (Pro) or SB3380 (Lite). For module-level replacement procedures:

• ·Pro series — see Particle Sensor — installation.
• ·Lite series — see Temperature Sensor — installation.