Model 9927 Alarm Processor 
(Accepts eight channels of alarm contacts; three alarms for Low, High and Malfunction 
conditions per channel) 
 PB100 Time Delay Relay 
(Programmable, multifunction digital time delay relay) 
Model 9928-BH Beacon/Horn 
(Wall-mount enclosure with strobe beacon and 98 dB horn for indoor or outdoor applications)