C121 & C301 Energy Savers
Comfort that runs only when needed.
Thermostats and building controllers that keep air-conditioning and lights on exactly when rooms are in use — and cut your electricity bill.
34+
Years of R&D
UL·CE·TÜV
Certified
Touch & keys
Interfaces
Wall & flush
Mounting
Featured products
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Engineered in-house for over three decades.
We design, manufacture and market thermostats, zone controllers and BMS connection ports — built to the highest standards of quality, comfort and service.
Our story →Certified quality
Tested to UL, CE and TÜV standards, approved for sale worldwide.
Personal service
Skilled engineers who resolve issues quickly and directly.
Flexible production
From small batches to high-volume manufacturing.
Open protocols
Interfaces with BMS systems over MODBUS, KNX, BACnet and more, with wireless options.
Global reach
Exporting to the USA, Canada, Italy, Spain, France and beyond.
Any questions?
Our team is happy to help you choose the right controller.