The only Solid-state all Electronic Float switch with no moving parts. It works in any water environment where float switches are used.
The Spark plug level sensor is a stainless steel sensor probe. The body of the sensor probe is used as the reference for the sensor and the stainless steel rod is used for the set point in this level controller. This steel probe can be custom made to any length and also comes with a 1/4-20 thread so it can be extended to any length.