CM-SR Series wireless system includes a high security stand-alone wireless receiver with (2) Form-C relay outputs. The receiver features a rugged construction with a built-in antenna for mounting indoors or outdoors. CM-SR Series wireless systems are designed to activate locking devices, such as magnetic locks and electric strikes, and automatic gate and door operators. Ideal for one or two door access control, in retail, commercial, and healthcare facilities. The rugged IP65 rated components are also perfect for gate or parking garage applications.