The Pyrotector Model 30-3003 Explosion Proof Smoke Detector is a sensitive yet rugged protection device that is designed for use in hazardous industrial and commercial locations.
5-degree volume control levels, built-in 24V DC forced relay and selectable power (6W, 30W, 60W, 120W): these are only some of the best-in-class features of Honeywell’s volume controller range! Design
HN-IA100 is a high efficient Power/Booster amplifier provides audio signal amplification for public address and voice alarm system, It is reliable,efficient and light in weight