External Sensor for aqueous liquids: (not fuel)
Eliminates problems caused by conventional float-switches clogging or jamming. Use this sensor with plastic (HDPE or LDPE) or fiberglass walled fluid tanks. It is not suitable for use on metal tanks. Wood-cored fiberglass walled fluid tanks might give mixed results due to the extra thickness of the tank wall and to the possibility of varying humidity levels within the wood core. For tanks of this type and metal tanks we recommend the installation of our internal rod-style sensors.
Due to its external installation, this sensor is also great for installation by do-it-yourselfer. Installation of the sensor can also be done in just a few minutes with common tools and materials, and since no holes are required in the tank, there is
no chance of a leaking tank as a result of sensor installation.