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Ajax Relay — a wireless dry contact relay that integrates the Ajax system with gates, electric locks, sirens, and other low-current devices via a volt-free output. The Ajax Relay provides a wireless-controlled dry contact (volt-free) output that can open or close on command from the Ajax Hub. This allows you to trigger any device with a dry contact input — electric gate motors, door strikes, third-party sirens, or custom automation equipment — directly from the Ajax app or as part of an automation scenario. It communicates via Jeweller and is mounted inside a protective enclosure or alongside the device it controls. Current state is reported back to the hub. Black finish. Key features Wireless dry contact (volt-free) relay output Controls gates, locks, sirens, and custom devices App control and Ajax automation integration State reporting back to Ajax Hub Wireless Jeweller protocol Black finish Specifications Model: AJAX-AD-RELAY-B Colour: Black Output type: Dry contact (volt-free NO/NC) Max switching current: 3A Protocol: Jeweller wireless Power: External 7–24V DC Operating temperature: -10°C to +40°C Need help choosing? Contact us at +27 32 586 3694 or support@audicoonline.co.za.