AJAX MultiTransmitter integrates third-party wired detectors with your Ajax security system. Connect up to 18 wired devices, including sensors with NO, NC, EOL, 2EOL, and 3EOL connections. With EOL resistance detection from 1kΩ to 15kΩ in 100Ω increments, you can use different EOLs for increased sabotage protection. Three independent 12V outputs power your devices, including a dedicated output for fire sensors.