The AP3402 two-door module is THE choice when adding doors to an AP3502 controller. Four inputs, two relays, and two reader ports provide complete control for two doors; or if one door requires a reader on each side, three inputs and one relay may be available for other tasks.
Benefits
Two reader or bi-directional single door module
Intelligent oversight and auxiliary monitoring at the access point
Easy to install, minimal wall space required
Pre-Owned surplus taken out of working unit. See photos for more details.