The Flexi–Pad Sensors have been specifically designed for laying in narrow voids (too small for point sensors) or wrapped around pipes at valves or joints where leaks are more likely to occur. The Flexi–Pad Sensor can be used singly, or in groups with a number of sensors being connected together to form one zone.

A removable fabric cover assists absorption and protects the sensing surfaces. Flexi–Pad Sensors can be wetted and dried any number of times provided the sensor element/fabric cover is not contaminated with a substance that irrevocably changes its electrical characteristics. Examples may be vending machine syrup, chemical floor treatments, paints etc. After wetting, the cover can be replaced with a spare or removed for drying.