System Sensor P2RHK This is an outdoor SpectrAlert Advanced. Brand System SensorModel P2RHKManufacturer System SensorType Alarm (Horn/Strobe)
Siemens U-MHST-MCS Category : SiemensI believe that this alarm has the ability to produce multiple tones.
EST SD-TRK4 Category : EST/EdwardsThis test switch is equipped with power, alarm, and trouble lights, and operates using an EST CAT 45 key.
