Multifunctional room sensor and measuring transducer

Multifunctional indoor climate sensor AERASGARD® RFTM - LQ - PS - CO2 - Modbus (maximum expansion level) with Modbus connection, in an elegant plastic housing with snap-on lid, base with 4-hole attachment, optionally with ⁄ without display, 
type variant RFTM - CO2 - Modbus optionally with ⁄ without setpoint potentiometer. The room sensor is used to detect the measurands air humidity (0...100 %  r.H.), temperature (0...+50°C), air quality (0…100 %  VOC), fine dust (PM) (0...1000 µg/m) and CO2  content (0...5000 ppm) as well as a room control unit (% setpoint). 

Use just one device to monitor and control the entire indoor climate effectively. This enables energy-saving room ventilation on an as-needed basis, thereby reducing operating costs and improving well-being. It is used in offices, hotels, convention centres, apartments, shops, etc. 

A long-term stable, digital humidity and temperature sensor guarantees exact measurement results. The air quality is determined based on a (VOC) mixed gas sensor. The CO2 contentof the air is measured using an optical NDIR sensor (non-dispersive infra-red technology). An optical fine dust sensor precisely detects particulate (PM) of the size category 0.3 to 10 micrometres. The sensor is factory-calibrated; an environmental precision adjustment by an expert is possible. One sensor for every 30 m² of room area is recommended.

Modbus sensor with galvanically separated RS485 Modbus interface, selectable bus termination resistance, DIP switches for setting the bus parameters and bus address in the currentless state, LEDs for telegram status display and two-line display (illuminated; with customised programming in the 7-segment and dot-matrix range).