{"product_id":"doorbell-telephone-ring-detector","title":"ELK - 930 - Doorbell \u0026 Telephone Ring Detector","description":"\u003cp\u003eThe ELK-930 performs three functions. It can detect ring activation from one or two doorbell buttons and a single telephone line. It conveniently isolates the voltage and current and produces an open collector (pull to ground) output which can be used to trigger an automation controller, relay, timer, etc. The circuit is pre-scored so that the individual detectors may be snapped off (separated) from each other.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSmall, Compact Size.\u003c\/li\u003e\n\u003cli\u003eDouble Sided Foam Tape Provided For Mounting\u003c\/li\u003e\n\u003cli\u003ePackaged in Reusable Poly Storage Box\u003c\/li\u003e\n\u003cli\u003eLifetime Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoorbell\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDetects Doorbell Activation Current.\u003c\/li\u003e\n\u003cli\u003eInputs for Two Separate Pushbutton Locations.\u003c\/li\u003e\n\u003cli\u003eNo Interference With Lighted Pushbuttons.\u003c\/li\u003e\n\u003cli\u003eProduces an Open Collector Output.\u003c\/li\u003e\n\u003cli\u003ePowered by the Doorbell Transformer.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTelephone\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDetects Telephone Ringing Voltage.\u003c\/li\u003e\n\u003cli\u003eProvides an Open Collector Output that follows the ringing pattern\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAdditional Details:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe ELK-930 Doorbell Detector monitors the current draw of a doorbell and produces an open collector output when the pushbutton is pressed and the doorbell draws 900mA or more. This open collector output can be used to trigger an automation controller input that utilizes high to low switching (pull to ground) for activation. The ELK-930 Telephone Ring Detector monitors the voltage on the telephone line and produces an open collector output (pull to ground) when the telephone ringing voltage is approximately 50 Volts or greater. The output follows the ringing pattern.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhats Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eELK-930 (2 Doorbell Ring Detectors and 1 Telephone Ring Detector)\u003c\/li\u003e\n\u003cli\u003e4 pieces of Double Sided Tape\u003c\/li\u003e\n\u003cli\u003eInstructions\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Elk Products","offers":[{"title":"Default Title","offer_id":47905476542715,"sku":"930","price":51.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/5032\/0891\/files\/930-768x665.jpg?v=1769706940","url":"https:\/\/www.cctvbestbuys.com\/products\/doorbell-telephone-ring-detector","provider":"CCTVBestBuys","version":"1.0","type":"link"}