Heath Zenith WC-6016-WH Lighting Control, Entry Switch Transmitter. Works within 100 ft. of Wireless Command receivers. For use with Wireless Command receivers. FCC/IC Certified. 2 Year Warranty. 1.25 in. w x 0.625 in. d x 2.5 in. h. and 0.625 in. w x 0.5 in. d x 1.625 in. h.