38204.19.NC1 - Ajax Relay Wireless Dry Contact Relay is a two-way remote control module designed to remotely control low-current electrical equipment and integrate automation systems with the Ajax security system. It uses the 868 MHz Jeweller radio protocol, with a communication range of up to 1000 meters in open field. Equipped with a dry contact (clean), it allows wireless control of connected devices and is compatible with the Ajax DIN Holder 51170.132.BL DIN rail mount. Ajax