Enclosed EnOcean® Enabled Wireless Relay Transceivers with Dry Contact Input; 20 Amp; 120 Vac, 208 Vac, 240 Vac, 277 Vac or 24 Vac/dc Power. Includes dry contact input for sensor feedback. Connects directly to controller’s output for relay control / status from load. 20 Amp load control. Range of 50-150 feet. Repeat capability. Made in the USA.