Wind sensor Regler für Heizung, Lüftung, Kühlung und mehr >

From heating control, solar, cooling circuit and ventilation control to entire building automation and energy management: Building automation done right.

Our new CORA thermostat

The CORA radiator thermostat is now available to order. It can be used as a radiator thermostat or as an actuator for floor heating systems. Whether it is connected to the control system via radio or cable is up to you - you always have both options.

our new pre-assembled pump-mixer group

The pump-mixer group is supplied pre-wired and communicates with our x2 control system via CORA. This saves you all the inputs and outputs you would otherwise need for sensors, pump and mixer.

Available to order now at an introductory price of 388 €.

Building technology intelligently controlled.

Our freely programmable universal controllers offer almost unlimited control possibilities for the entire heating and building management:

As solar- or heating-controller, for lighting and shading as well as ventilation and air conditioning

Optimize PV usage the smart way

ATON is a plug & play solution for usage of excess PV power - without additional wiring. Connected wireless via CORA, the energy meter transmits the amount of power to be used to the immersion heater.

Due to the freely programmable energy meter CAN-EZ3, inidvidual needs like the integration of heat pumps or further consumers, can be realized too.

Product information FRISTAR3

The valve’s servomotor can cause problems with DHW preparation. Here you can find information and help for this case.

created: 12/18/2023

Programming example: Excess power charging

Our latest example shows how to use a charging station with our CAN-EZ3 smart meter. Details in the video (german language).

see download page

see YouTube video

A million systems

Since 1989, over a million systems are regulated using our products.

40 countries

Systems in over 40 countries are monitored and regulated using our devices.

10,000 users

About 10,000 customers actively use our Web portal for remote maintenance and data logging.

Employee of the SMD production — Internal SMD production

Intelligent control engineering since 1989.

The Technische Alternative develops and produces intelligent controllers for heating and building technology. Especially our freely programmable x2-tech series, consisting of universal controllers and different extension modules Erweiterungsmodulen, make us popular even beyond the german-speaking area. Suitable for just about scenario, our controllers are flexible, updateable and expandable, offering a range of devices for all your current and future projects.

At this point, it's not just controllers with fitting accessories, sensors and operating units that we have to offer, but also domestic hot water stations and an electronic heating rod to make use of excess PV energy.

Professional support and affordable repairs

We help our customers to answer questions and solve problems regarding our devices using tech support via telephone. This often makes sending the device in for repairs obsolete. In any case, we still offer affordable repairs. We repair even 30 year old controllers, as long as it's possible and it still makes sense, since we practice responsible handling of ressources. With affordable flat charges for repairs and short processing times we form a good basis for this.