Stainless Steel Vertical Float Switch Liquid Level Sensor 10WProduct Description: A small mechanical switch (aka. reed switch) sealed in the stationary part of the sensor is activated by a small magnet in the moving part (the float). This sensor works with any voltage current (AC or DC) within the maximum limits as specified below. All voltage current power ratings are for resistive loads. However, one should always try to reduce the voltage and current applied on the sensor to a level as low as possible in