Size:
Device: 75mm x 44mm x 30mm
Screen dimension: 69mm x 38mm
This unit does require a power supply that has both 12v and 5v power lines, it presently works with computer power supplies.
Instructions:
Start: Press once and the start up temperature will blink, use the right Up/Down buttons to set the temperature (note: it must be at least 2F/1C higher than the turn off temperature) press Start button again to return to the real time readout.
Stop: Press once and the turn off temperature will blink, use the right Up/Down buttons to set the temperature (note: it must be at least 2F/1C lower than the turn on temperature) press the stop button again to return to the real time readout.
C/F or Up: Will change display to and from Fahrenheit and Celsius or will increase the temperature when in the Start or Stop programming mode.
Down: Will decrease the temperature when in the Start or Stop programming mode. Not tested at extreme temperatures