Check the listing for details. DSC EV-DW4917 Wireless Recessed Door/Window Sensor Secure Wireless 433 MHz. Condition: New. Listed at 59.99 USD. DSC EV-DW4917 Wireless Recessed Door/Window TransmitterProduct OverviewHidden discreetly within the frame of a door, the only visible part of the EV-DW4917 wireless recessed door/window contact once installed is the access cap (available in white or brown). Access caps are either flanged or non-flanged and allow for either a screw-mount or a press-fit installation. A flat head screwdriver is used to change the cap if needed or access the battery. Primarily designed for installation within a door, the transmitter can also be used within the frames of windows. The EV-DW4917 is built with reliable 433 MHz technology, is powered by a replaceable lithium battery and is compatible with all current DSC wireless receivers. Versatile The EV-DW4917 is designed to provide installers with flexibility during difficult installations. By having access caps flanged or non-flanged, installers are able to decide whether it's necessary to screw-mount or press-fit an installation. Another feature of this installer friendly device is its replaceable lithium battery that provides uninterrupted supervised security for many years. Inconspicuous and Unobtrusive Barely discernable once installed, the EV-DW4917 is completely hidden when the door is closed. This is ideal for those customers who do not want to compromise the aesthetics of their décor.Main Features· Small, compact design· Long-life lithium battery included· Flexible mounting options (screw mount or press fit)· Reliable 433 MHz technology· Powerful, rare-earth magnet· Ships complete with flanged/ non-flanged, brown/white access capsGeneral InformationName: DSC EV-DW4917 Wireless Recessed Door/Window Transmitter, Johnson Controls, DSCCategory: DSC, Intrusion, Intrusion, Alarm Contacts, Wireless Intrusion, Magnetic Contact TransmittersUPC Code: 820043000900Country of Origin: Taiwan. Country of origin is subject to change. Please ask if you have questions about compatibility concerns with other security equipment.Your satisfaction is guaranteed. If the item you purchased does not meet your expectations or needs please contact us. If the item is returned in the same condition we sent it in, and within 14 days, we will refund your purchase price less shipping & handling costs. If we made a mistake, then the S&H is on us. Buy with confidence and best wishes!We Combine Shipping! Please request an invoice before paying if combining with items from our other listings. The United States Postal Service (USPS) will no longer run traces on packages shipped by First Class Mail International or Priority Mail International after they leave the United States. True tracking is only available on Express Mail International which is in most cases is more than double the shipping cost. We provide our best efforts to keep shipping & handling costs reasonable for international eBayers. If you choose Economy International Shipping it may be between 5 to 15 business days and in some cases even longer and regretfully not possible to trace. USPS Express Mail International is at a considerably higher cost but is traceable and generally is delivered within 3 to 10 business days.