.svg)
Have you tried ST-EXTEND?
No more costly transportations or hassle with long venturi tubes! If you haven’t already, try our venturi extension tube, ST-EXTEND. Fully compatible with our Uniguard® duct smoke detectors!
Inspired by progress
Innovation and progress is what inspires us to constantly aim higher. And after 50 years in the HVAC and building automation industries, Calectro has evolved into a global supplier of groundbreaking building automation equipment. From our high precision duct smoke detectors, pressure sensors and CO2 alarms to our humidity sensors, thermostats and air quality regulation sensors.
Personal support
Need help?
Contact us between 8 AM – 4:30 PM every weekday (CET).
Deliveries worldwide
We arrange shipment to almost every country.
Sustainable
We offer a 5 year warranty for all of our products.
Develop something new!
Let’s create something together that the market has never seen.
Support
We would love to hear from you and see how we can help you find the right products for your projects and needs.