{"product_id":"tektone-sound-amp-signal-pk543a-amplifier-relay-power-supply-for-5-4","title":"TEKTONE SOUND \u0026 SIGNAL PK543A Amplifier\/Relay\/Power Supply for 5, 4","description":"\u003ch4 class=\"product-title-description\"\u003eTekTone PK543A Apartment Intercom Amplifier for 5, 4, 3 Wire Remote Station\u003c\/h4\u003e\nThe \u003ca href=\"https:\/\/www.tektone.com\/pdf_files\/manuals\/IL826_PK543A_install.pdf\" target=\"_blank\" rel=\"noopener\"\u003ePK543A\u003c\/a\u003e Apartment Intercom Amplifier is a self-contained unit that does not require an external amplifier. The PK543A is designed for use with 3-, 4- or 5-wire apartment remote stations and provides amplification, control and power circuits needed to operate a complete apartment intercom system. Voice volume control and tone volume control are easily adjustable through the screwdriver opening on the front panel.\n\nAdditional functions include multiple door entrance operation with the PK502B; AC, DC or Maglock configurations with three selectable delayed door timing modes; post office door lock release; steady or warble call tones; power LED; selectable door button hold timeout; and selectable talk before door interlock (available for 4­-wire stations only).\n\u003ch4\u003e\u003cstrong\u003eMain Features\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eEasy installation\u003c\/li\u003e\n  \u003cli\u003eLow-voltage operation\u003c\/li\u003e\n  \u003cli\u003eMultiple applications\u003c\/li\u003e\n  \u003cli\u003ePrecision engineering\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TekTone","offers":[{"title":"Default Title","offer_id":43247301689409,"sku":"T9-PK543A","price":149.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0700\/2465\/9009\/files\/c855804a-41ihlksjqfl._ac_us1500.jpg?v=1770770480","url":"https:\/\/www.fireandsafetyplus.com\/products\/tektone-sound-amp-signal-pk543a-amplifier-relay-power-supply-for-5-4","provider":"Fire and Safety Plus","version":"1.0","type":"link"}