STI STI-1230 without Horn Surface Mount Temperature Range: 32° to 122°

Temperature Range: 32° to 122° F (0° to 50° C)

Verification includes NAC Supervisor

twisted-pair

isolating the short between the two modules located closest to the short

helping to prevent fires in ventilation systems

STI STI-1230 without Horn Surface Mount Temperature Range: 32° to 122°Larger cover helps prevent malicious or accidental false fire alarms. The Stopper II is a unique device which has helped prevent false fire alarms around the world for more than 30 years, without restricting legitimate operation of devices such as fire alarm break glass call points. It is ideal for schools, colleges, hospitals, nursing homes, hotels, and all public buildings where there is a history or a threat of false fire alarms. The Stopper II