Low-priced mobile handheld device for water level measurement in groundwater.Other than the affordable cost, SEBA KLL-Light Electric Contact Gauge is characterised by its lightweight supporting frame made of high-strength polycarbonate with a comfortable grip, and a LED battery status indicator. The device is equipped with a a contact meter (sensing device) activated on contact with water, which sends both an optical and an acoustic signal. Like all SEBA- electric contact gauges, the KLL Light is also equipped with a robust, low-wear and therefore long-lasting ribbon cable with easily legible numbering.