The GP2D120 is the shortest-range Sharp analog distance sensor we carry, featuring a detection range of 1.5" to 12". The shorter range gives you higher resolution measurements, and the lower minimum detection distance makes this sensor great for detecting very close objects. The distance is indicated by an analog voltage, making this sensor very easy to use.
Note: We do not know when or if we will be able to get this part in stock again. Please consider our other optical distance sensors as alternatives.