1.0Zeta Alarmshttps://www.zetaalarmsystems.comzetaalarmshttps://www.zetaalarmsystems.com/author/zetaalarms/rich600338<blockquote class="wp-embedded-content" data-secret="rPGhOPsnJE"><a href="https://www.zetaalarmsystems.com/downloads/mkii-addressable-smoke-detectors-install-manual/">MKII Addressable Smoke Detectors – Install Manual</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.zetaalarmsystems.com/downloads/mkii-addressable-smoke-detectors-install-manual/embed/#?secret=rPGhOPsnJE" width="600" height="338" title="“MKII Addressable Smoke Detectors – Install Manual” — Zeta Alarms" data-secret="rPGhOPsnJE" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); //# sourceURL=https://www.zetaalarmsystems.com/wp-includes/js/wp-embed.min.js </script> https://www.zetaalarmsystems.com/wp-content/uploads/2024/04/MKII-AOP-MKII-OP-1.png11811183The Fyreye MKII optical smoke detector (MKII-AOP) uses a pulsing IR LED & photodiode to detect IR scatter caused by smoke entering the chamber. The detector is particularly suitable for detecting optically dense smoke, involving materials such as soft furnishings, PVC, plastic, foam and all similar materials which produce small visible particles (0.5 to 10μm).