Home / Featured LT / Siemens AD2-4W Siemens AD2-4W $58.29 Air Duct Monitoring Housing Lead Time: 6-8 Business Days Siemens AD2-4W quantity Add to cart Factory New FireAlarm.com Part #: 64345 Category: Featured LT Manufacturer Part #: AD2-4W Description Specifications Resources Reviews (0) Description Model AD2-4W from Siemens Industry, Inc., is an air duct monitoring housing containing sampling tubes. When used with a PE-11 smoke detector, smoke and combustion products are detected for shutdown of the duct system and/ or operation of supplementary equipment as provided by the system control panel.The duct unit supports two sets of Form C alarm contacts, one Form A alarm contact and one Form C trouble contact. The trouble contact supervises the presence of the input power, removal of the detector cover and the removal of the smoke detector head. Information Brand Siemens Condition New ResourcesModel AD2-4W, P/N 315-049709-3 Siemens – Data Sheet Reviews There are no reviews yet. Be the first to review “Siemens AD2-4W” Cancel replyYou must be logged in to post a review.