Domestic Motion Detectors

Outdoor and Commercial Motion Detectors

We do it all

Carclo has many decades of experience designing and manufacturing PIR lenses. In fact we were the first to manufacture plastic lenses some 80 years ago. We have a deep understanding of the technical challenges in producing the best possible PIR lenses, reflectors and spot lenses.

If you can use a standard lens then this is the fastest development path. We do however offer an efficient design service to give you the exact lens you need for your application.


Our main site is located near London. However we have a global foot-print and offer local manufacturing if needed in USA, China, India and CZ.


PIR lenses require special materials to ensure the lowest possible signal loss. Our custom materials let more of the signal through!


The best manufacturing practices and materials are everything. The lens design is critical for low noise devices and we continue to push the design envelope for our clients.
More Info

Original Carclo – More Info
A short history of PIR detection by Hans Keller

QS9000 – ISO 9001 – ISO 13485 – TS 16949 – EN 14001