Hi Shahzad,

Always happy to help. Try doing a search for 'Nippon Ceramics' then you may hit the re-located home page.

Any way, do not underestimate the problem with the fresnel lenses.These are specifically designed and you have to keep the PIR sensor exactly at the right place and keep tinkering with the various sensitivity settings to get a stable response to human presence/movement. There are plenty of application notes on the Fresnel Technologies Inc (USA) website.


By the way, where are you located?, I'm at Thane, Maharashtra, India, near Bombay and I am doing elevator stuff.
regards, Raj.