Easy snap in installation with any fan in the LV range of fans.\r\nThis comes with a wide choice of functions allowing you to tailor it to your needs.\r\nAny LV module fits any LV fan\r\nThe ICON LV modules are designed to allow full customization of your 12V dc ICON.\r\nHumidity, Pull cord with overrun timer module: Adjustable humidity setting 40% to 90% RH, adjustable timer, and pull cord boost.\r\nThis ICONHTS SELV MODULE HUMIDITY PULLCORD TIMER is included in our one-year guarantee, as are all of our products on our website electricals247.co.uk.