At OJ Electronics we are happy to announce that the popular OJ GreenZone™ control system is now BTL certified. This makes it easier for you to comply with tender specifications – and gives you access to even more functions via the BACnet protocol.


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Green Comfort

Intelligent Control
Green Comfort

Intelligent control results in maximum comfort with low energy consumption.


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About us

Introducing OJ Electronics
About OJ Electronics

For more than 50 years, we have designed and developed electronic controls for underfloor heating and HVAC.