Abstract: A wireless electronic signal measurement and generation device is presented. The device enables a host computing system, such as a smart-phone or PDA having standard wireless networking capability, to wirelessly connect to a multitude of wired electronic systems for test and measurement, such as an electronic thermometer or motor. The electronic systems under test are connected to the device by wire or probe. The device wirelessly connects to a host computing system by standard wireless network protocol, such as Bluetooth or IEEE802.11 Wi-Fi. The device supports direct unfiltered relay of measured analog data, detected digital data, and generated analog or digital signals between the host computer and connected electronic systems under test bi-directionally. The device can be embodied as a single module including a housing, wire connection ports, and a wireless connectivity module.