Casnovia Electric Equipment Manufacturers 19 Railroad St Linear manufactures innovative home products. PERS, intercom systems, central vacuums, speakers, whole house music systems, security systems, garage door operators, gate operators, residential and commercial entry systems. The Builder Program brings the industry�s leading brand names together, including, ChannelPlus, OpenHouse, Mandamp;S Systems, and AirVac, all under one name - Linear. Casnovia MI Electric Equipment Manufacturers Linear Osco www.operatorspecialty.com wireless radio control central vacuum security system garage door operator gate operator Linear LLC transmitter receiver access control pers-2400A pers-3600 emergency reporting speakers music intercoms DMC10 Linear ChannelPlus Ope wireless radio control central vacuum security system garage door operator gate operator Linear LLC transmitter receiver access control pers-2400A pers-3600 emergency reporting speakers music intercoms DMC10 Linear ChannelPlus Ope Business Reviews Linear Osco Testimonials