System Sensor PA400B+PS24LO The horn’s model is PA400B, the strobe’s model is PS24LO. Brand System Sensor
Simplex 4903-9219H Category : SimplexThis alarm is specially made for high-humidity situations such as swimming pools. That’s what the “H” in the model number...
Simplex 4904-9053 Category : SimplexI accidentally bought this particular unit not realizing I already had one. Oh well, happens.