Putting the ALM-X2 into operation – step by step
Once wired according to the connection diagram, the ALM-X2 starts with factory settings and controls the temperature right away. The thermostat is then joined to the Wi-Fi network to enable the smart functions.
- Step 1: wire the device as shown in the diagram – it starts with factory settings
- Step 2: connect to Wi-Fi – easiest using the WPS button on your router
- Alternative: connect through the thermostat's built-in access point
- Step 3: open the web portal and set the basic parameters
- Step 4: enter the MQTT broker for Home Assistant, ioBroker or openHAB

Learn more about the structure of the messages between the Thermostat and the MQTT Broker can be found here.
Web Portal Overview
Overview
| System
|
--> WLAN
| Network --> MQTT Client
|
Network --> SNTP Time
| Network --> Interfaces
|
Frequently asked questions
Does the ALM-X2 work without Wi-Fi?
Yes. Without an internet connection the thermostat still controls the room temperature by setpoint and daily program. Only the smart functions are unavailable.
What is the easiest way to join the ALM-X2 to my Wi-Fi?
Using the WPS button on the router. Credentials are exchanged in the background, so nothing has to be typed in.
How do I reach the web portal?
Through the IP address the thermostat receives from your router once the Wi-Fi connection is established.
Which smart home systems are supported?
Any system that speaks MQTT, including Home Assistant, ioBroker, openHAB and Node-RED.
ALM Controls e.K. in Bad Camberg, Germany, has been developing and selling digital thermostats and smart home components since 2011. Questions before you order are usually answered within 24 hours by e-mail or phone.