Simplex 478-296 Audio Transformer NEW IN BOX Note: The box has seen a little wear from storage in our warehouse, but the item is new and in perfect condition. The Simplex 478-296 Audio Transformer is intended for use with Simplex 4003 Voice Control Panel 25VRMS Brand: Simplex Manufacturer Part #: 478-296 All fire alarm parts should be installed and tested by a certified fire alarm professional as required by local codes and NFPA. Disclaimer: We are not affiliated with any fire alarm manufacturers or dealers. We offer high quality new and seller reconditioned reliable fire alarm parts to help you maintain your existing fire systems. We buy, sell, and liquidate excess fire alarm parts. We are selling a huge amount of new alarm equipment! Please take a look at our other listings! *WE CAN WORK OUT A DEAL FOR BULK ORDERS* SHELF: B Listing and template services provided by inkFrog