Room unit QMX6.P74

with temperature, relative humidity, & CO2 sensors, 
available in white and black,
with slim profile of 18 mm,
for vertical installation directly on the wall or on a conduit box,
with 3.8“ touch LCD with backlight,
for display and operation of HVAC functions,
with Green Leaf for display and operation,
with air quality indicator,
with adjustable room operating modes: Auto, comfort, pre-comfort (standby), economy and protection,
with adjustable setpoint for temperature, humidity, and CO2,
with adjustable fan speed: continuous or up to 5-speed,
with integrated temperature controller for heating and cooling,
for water-based HVAC equipment: Radiators, floor heating, radiant ceilings,
in HVAC applications: 2-pipe, 2-pipe/2-stage, 2-pipe with changeover, 2-pipe/2-stage with changeover, 4-pipe, 4-pipe/2-stage,
in control applications: 2-point (on/off) and/or PI (PWM/continuous) for first stage, and PI (PWM/continuous) for second stage,
with integrated humidity controller as PI or staged (up to 5 stages) control,
with integrated CO2 controller as PI or staged (up to 5 stages) control,
with manager/subordinate operation,
with 3 calculators to calculate maximal, minimal or weighted values for up to 6 values of: percentage, temperature, illuminance, humidity, and CO2,
with 3 comparators to compare two values of internal sensors, external objects, constant values and calculator evaluations,
with integrated bus coupler, bus connection via bus terminal, operation of electronics with bus voltage,

Manufacturer: Siemens 
Order no.: S55720-S609 (white)
Order no.: S55720-S647 (black)