SIEMENS HFP-11 Detector Fire Alarm 500-033290 Smoke Detector Head USED (Qty-10)

This is for Ten (10) Siemens HFP-11 smoke detector that comes without a base and are in good working order. These detectors were recently removed during a system upgrade. These were all functioning properly when removed and are being sold as is. Markings and date codes may vary from the one in the picture.