Smoke Detectors 
GE INTERLOGIX Smoke! in a can Aerosol Tester SM200

SM200 Features:

For functional testing of photoelectric or ionization smoke detectors Will not contaminate smoke detectors Listed for use with the following system smoke detector/alarms: Ademco 5807LS, Aritech, Caddx, Detection Systems, ESL, Inovonics, ITI, System Sensor