The PFA113 is a Ceiling Mount Bracket from Dahua. Features: Material: Aluminum Ceiling Mount Bracket Neat & Integrated design Specifications: Model DH-PFA113 General Material Aluminum Dimension (W x H x D) Φ53mm x 420mm Pipe Thread 1 1/2″ PF Operating Temperature -40ºC ~60ºC Humidity 0~90% RH Load Bearing NA Weight 1kg