PKE Meter version 12 is another "cactus" design with antennas feature two bright LEDs that light up brightly along with 2 LEDs on the front. A color changing LED illuminates the main viewscreen. All of the lights run off of a 9volt battery that is easily changed from the panel on the back. It comes with a clip on the back for holding it onto your belt. Weathering has been done to make the scanner look used and abused.