Apollo 45681-300APO Discovery Sounder Base - DIN Tone - Isolating DTK-120HW The low frequency sounder and

The low frequency sounder and low frequency sounder strobes were designed to address the NFPA 72 sleeping space requirements that require a low frequency notification appliance that operates within frequency range of 520 Hz ± 10% and is of a square wave tone

This model features a 3

It requires no special back box when the all-weather leads are properly spliced to "THW" or equivalent type wire and splices are moisture proof

Potter PSN-64 6A Conventional Power Supply with 4 Outputs

4100 Pwr Supply 120V Pl Amp

Apollo 45681-300APO Discovery Sounder Base - DIN Tone - Isolating DTK-120HW The low frequency sounder andApollo 45681 300APO Discovery Sounder Base DIN Tone Isolating