The 2151 low-profile photoelectronic detector uses a state-of-the-art optical sensing chamber. This detector is designed to provide open area protection and to be used with compatible UL listed control panels only.
System Sensor’s SSM Series alarm bells are low-current, high-decibel notification appliances for use in fire and burglary systems or other signaling applications.
Wheelock’s Series CVX/CSX Explosion-Proof Bells have earned the reputation for rugged, reliable performance over years of service in hazardous environments.