A gauge monitoring system can include a parameter store that stores parameter data in digital form for at least one gauge. The parameter data can correspond to different gauge readings. An image processing circuit can be coupled to receive image data from an image sensor physically attached to at least one gauge. The image processing circuit can analyze the image data to generate image data points corresponding to the gauge image and generates a gauge reading from the image data points and the parameter data. A transmitting circuit transmit the gauge reading to a location remote from the gauge. A control circuit that activates the image processing circuit and couples the gauge reading to the transmitting circuit.