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QMX3...   Wall-mounted sensors and room operator units for KNX PL-Link, KNX S-mode and KNX LTE-Mode  CM2N1602en_07 
Siemens Building Technologies    2017-05-22 
 
   
Product number  Stock number  Features 
Temperature sensor 
Humidity sensor 
CO
2
 sensor 
Air quality indicator 
with LED 
Segmented backlit 
display and 
QMX3.P37 
QMX3.P37-1BSC 
S55624-H108 
S55624-H129 
X        X  X  X  X 
Accesso-
ries 
 
QMX3.MP1 
S55624-H110  Base plate for conduit box / cavity wall box for 
68 mm diameter hole  
20 pcs. per package 
 
Use / compatibility 
The room automation station determines the functions of both LCD display and 
keys. 
•  Measure and indicate the room temperature, humidity and CO
2
. 
•  Operate the room functions.  
•  Indicate external information 
(outdoor temp., outdoor humidity, state of a window switch). 
 
Measure and indicate  Indicate external information 
−  the room temperature  –  outdoor temperature 
−  the relative humidity  –  outdoor humidity 
−  the CO
2
 concentration  –  state of a window switch 
 
Control (threshold value switch)  Control (with a PID controller) 
−  of the relative humidity  –  of the room temperature 
−  of the CO
2
 concentration