As an Amazon Associate, we earn from qualifying purchases. Alpha NH209TT-3 2 Wire APT Amplifier/Power Supply | 123 Security Products Alpha . NH209TT-3 Gallery Attributes Brand name, Manufacturer name, ManufacturerAlpha Extra Product NameAlpha NH209TT-3 2 Wire APT Amplifier/Power Supply | 123 Security Products moq, multiple, tierMinQty11 MPN, SKUNH209TT-3 qtyInStock-2 qtySourcefixQty1 snippet2 Wire APT Amplifier/Power Supply Use with HT3009 SER. Handsets and DZ209 Series Diode Boards (Mounts Inside Entry Panel). The Alpha Communications® / S.T.R.™ NH209TT-3 amplifier/power supply is used with the HT3009 and/or HT2009 series handset stations to provide intercom amplification and power to operate the associated intercom system, and certain optional components and/or accessories, such as electric door opener(s) etc. The NH209TT-3 powers from a 12VAC (40VA) low-voltage Class II transformer. The NH209TT-3 power Supply is designed to easily mount right onto the plastic speaker/microphone grille in the 'TT' and 'TTM' series lobby entry intercom panels. The PC boards are treated with a special chemical finish, to minimize the affects of weather and moisture on the electronic components. tierPrice1212.45 Distributor offers SellerSKUMOQIn stockMultiplePrices 123securityproducts.comNH209TT-31-211 @ $212.45