Expand your Verex Monitor XL™ communication bus with the #120-3655 SNAPP expander. This unit allows for easy integration of additional control panels and keypads, making it perfect for larger security systems. The SNAPP technology simplifies installation and reduces wiring, saving you time and money. The Verex #120-3655 is a unit-type device that is compatible with the Verex Monitor XL™ series.  Purchase this reliable communication bus expander from Verex for your security system and enjoy seamless integration and expansion.