Recent content by factorial

I see. Thanks for the response. Anyone else have second opinions or more input to add in please?

I'm not sure whether to use this: Class 1 http://www.kanda.com/products/Sena/PARANI-ESD1000.html or Class 2 http://www.kanda.com/products/Sena/PARANI-ESD200.html I'm planning to use it in an elevator for a senior project and I would like some suggestions or advice on which to...