Omega’s Universal Circular Chart Superecorder is a portable device that comes in four models: temperature and relative humidity, dual thermocouple, dual process, and pH and RTD temperature. Located on the front panel is a keypad for programming and a large, bright, dual backlit display. An RS232 PC interface allows the user to download recorded data. The unit includes double-sided chart paper and a magnetic hub. The temperature/relative humidity model also comes with Windows-based PC application software to log data in real time, download recorded data, or rescale chart paper. A wireless temperature/relative humidity probe is offered as an option.