Electronic Temperature Control, Input Voltage 24 Volts, Switch Action SPDT, Sensor Thermistor, 2 Inches Long x 1/4 Inch Diameter, 8 Feet Cable, Set Point Range -30 to 220 Degrees Fahrenheit, 0-10 Volts Output Yes, Ambient Humidity Range 0 to 95% RH, Noncondensing, Differential Range 1 to 30 Degrees Fahrenheit, Enclosure NEMA 1, Number of Stages 1, Height 6.52 Inches, Depth 2.48 Inches, Width 2.7 Inches Electronic Temperature ControlsDigital displayRancoDisplays error codes. Keypad lockout, settings memory, and time delay on power up. 0 to 10V output on 3ZP78, 3ZP80, 3ZP83, and 3ZP85.All are UL Listed and CSA Certified.Thermistor sensor: 1/4"dia. x 2"L