Buy on Amazon : http://www.amazon.com/gp/product/B003TZ9YZU?tag=scratchandsti-20 <br /> <br />2gig DW10 Thin Door Window Contact ETL Listed <br /> <br />For Narrow Application Sensor on 75 Wide Fully Supervised Rare Earth MagnetSupports Internal and External 345 MHz ETL Listed <br />For use with the 2GIG Alarm System <br />Can be installed on doors windows and many other objects that open and close <br />Has an external input that accepts NC dry contact devices <br />Equipped with cover tamper for additional security
