Connecting sensors and transducers into a display panel or HMI/SCADA interface can be a costly exercise, particularly over large distances. We provide a simple way to send 4-20mA, digital, thermocouple or supply voltage status signals over long or short range wireless connections. Devices can be purchased as a matched pair for fast and simple installation with no configuration required, transferring analogue and digital status continuously. Features such as received signal and communications status mean easy commissioning though a single button press for signal strength display. Our simple I/O transmitters and receivers can be deployed as a license-free solution on 900MHz and 800MHz bands, making them suitable for use in many different locations.