PRODUCT SPECS SKU DB-1SD Manufacturer Aiphone Series DB Series Application For hands-free Audio Entrance Security Country of Origin Thailand Product Warranty 1 Year Limited Warranty Type Surface Mount Audio Sub-Master Station UOM 1 UPC 840067650790 PRODUCT FINISH Finish White Finish Description White TECHNICAL SPECS Display Not Applicable Door Range (Thickness) - Mount Surface Mount Operating Temperature 14~104 F Degree Operating Temperature Power Source PT-1211C Power Transformer Power Source Selling Quantity 1 System Scope DB System Scope: Master up to 4 Sub-Stations Voltage 12 VAC Voltage Wiring Detail Wiring Detail: Aiphone 87182 PRODUCT DIMENSIONS Dimensions 7-5/16" x 3-1/8" x 1-1/16" PACKAGE DIMENSIONS Box Depth (#) 9.75 Box Height (#) 2.25 Box Weight (#) 0.9 Box Width (#) 4.5