Capacity sensor is located on the bottom side of the device and detects metal coating, even if located on the opposite side of single glass. This function is useful mainly for glass processors and windows manufacturers enabling them to find coating in insulated glass.
Usage: Device should be applied to the glass with label side to the surface of glass, not closer as 10cm (4″) from the frame and button should be pressed.
Red light – metal coating is present on the side of glass at which device is applied.
Yellow light – metal coating is present on the opposite side of glass.
No light – no metal coating present.