Siemens CH-MC-W Category : Siemens This is basically the white, Siemens-branded version of the Wheelock CH70-24MCW. Brand SiemensModel CH-MC-WManufacturer WheelcokType Alarm (Chime/Strobe)
Cerberus Pyrotronics EH-24S Category : Cerberus PyrotronicsThis alarm is essentially a 4-wire, Cerberus Pyrotronics-branded version of the Wheelock EHS-DL1.
