Most of our SX Format Transmitters are wireless, battery powered and fully supervised for 24 hour security coverage. We offer one non-supervised, SX Format miniature pendant transmitter in MegaCode format. SX Format handheld transmitters, door/window transmitters, bill trap and pendant transmitters all offer different forms of security for different types of venues. Each of our SX transmitters is pre-coded with a unique code in order to avoid system interference. We offer both 1-button and multi-button transmitters. Each button is preset to send a predetermined signal, whether for emergencies or other situations. Our SX Format Transmitters are each battery powered and are accompanied by batteries lasting from two to five years. Battery levels can be communicated to our 2-Channel Receivers in order to avoid operation failure during emergency situations. All of our SX Format Transmitters are easy to operate and install for quick and simple, everyday use.