Our D to A Converter converts the real-time output of the CorTemp Data Recorder to a correlated voltage for input into various analog recording devices. Features an output port for temperature with nominal 0-5V range. May be used with either a non-heart rate or heart rate CorTemp Data Recorder. Includes BNC and SMA cabling (2), and data input cable. Works off an AC power supply included with the system or a 9 volt battery.