0-130 PSI digital pressure gauge, 10-bit A/D conversions, 240 samples averaged every half a second and displayed on a three digit 7-segment LED, 120 VAC outputs via logic level triacs, two point (0 PSI & 100 PSI) pressure calibration, calibration data stored in EEPROM. Pressure readout is very smooth and tracks a precision pressure gauge very well over the entire range. Includes JPG schematic.


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