piezo switch for sale, brand-new and used.

Gentex 7103F Photoelectric Smoke Alarm NEW IN BOX See: http://www.gentex.com/sites/default/files/fire_docs/551-0038.pdf Features Available in 120VAC and 220VAC Horn Frequency 3100Hz (Nominal) Nominal 2.5% Sensitivity Functional Test Switch — Patented Three Position Test On-Site Maintenance Washing Pro

SYSTEM REMOVED FROM HOSPITAL IN THE AREA INCLUDED:THE SYSTEM ( AS SHOWN IN THE PHOTO WITH THE COMPUTER WITH THE DONGLE,MANUAL AND ACCESSORIESPLEASE CHECK THE PHOTO CAREFULLY I DON'T SEE DON'T HAVE .WHAT YOU SEE WHAT YOU GET ) THANKS!!!

New SparkFun Inventor's Kit for Photon Internet of Things IoT KIT-13320

Ultrasonic Generator