SPECIFICATIONS Inputs and Outputs Serial Interface Port (RS232): Bi-directional, 9600 Baud Connector: 9-way, D-type Hardware: No handshaking Switch Test Sockets: 4 mm Voltage: 120 V (230 V optional) Hz: 50/60 Watts: 400 Measuring Zone: 0 to 50 mm (0 to 1.97") from base of well Display Resolution: 0.1°C or 0.1°F Programmable Ramp Rate (°C/min): 0.18 to 77 Communication Port, 9-Way D-Type: Full, bi-directional RS232 Environmental Specifications Ambient Temperature: 10 to 30°C (50 to 86°F) Humidity: Up to 95% non-condensing