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| © Danfoss | FEC | 2023.12   AB440847594423en-000103
Application Guide Heating Control Danfoss Ally™
Danfoss Icon2™ specifications 
Danfoss Icon2™ comes in 3 modular concepts to cover every application – Wireless, common 
and wired solution. 
Wireless solution
Common Solution Wired solution
Icon2
TM
Sensor
Wireless sensor without display
Icon2
TM
RT
Wireless sensor with display
Icon2
TM
Featured RT
Wireless sensor with display and Infrared 
floor sensor
Icon2
TM
Main Controller 15Ch. 
Basic or Advanced option available
Ally
TM
Gateway
Danfoss Zigbee Repeater
ESM-11
PT1000 sensor
TWA 24V 
Conversion module
Dew point 
sensor
Icon2
TM
Wired RT
24V Wired room thermostat
In or On-wall available
Floor sensor
47kOhm 
External antenna
With Danfoss Icon2™ you can chose between 3 dierent Wireless Thermostats.
Danfoss Icon2™ Sensor Danfoss Icon2™ RT Display Danfoss Icon2™ RT Featured
Code 
number
Version Display Humidity 
sensor
Floor 
sensor
Tool-free 
mounting
Open 
Zigbee
088U2120 Danfoss Icon2™ 
Sensor
÷ + ÷ + +
088U2121 Danfoss Icon2™ RT
+ + ÷ + +
088U2122 Danfoss Icon2™ 
Featured RT
+ + + + +
Available +   Optional (+)  Not available ÷