An easy and low cost way to monitor electrical current flow, CR2550 Current Indicator uses the current carrying wire routed through the window opening of the current transformer element to read current flow. A bipolar LED is directly attached to the transformer and illuminates when the current is above 0.75A ac. The indicator light glows when current is flowing and turns off when an interruption or failure of current flow occurs. This remote visual display is simple and instantaneous. The indicator works at 50 or 60 Hz, and comes with standard 11" long wire leads. AT THE SITE: product photos, descriptions.