Horst Miracle Probes are considerably longer than standard probes and the sensor is surrounded by a Delrin body and teflon tube which prevents any liquid residue or sludge from setting up a conductive path
Easy to install as they fit the 3/8? diameter holes of existing probes
Compatibility with existing wiring and monitors, so they can simply be connected to the new probes
These Miracle Probes Prevent False Monitor Readings Of Levels In Grey And Black Waste Water Tanks. They Eliminate False Conductance Between The Metal Probe Point And The Tank Wall Covered With Sludge. Probes For Black Tanks Feature A Protective Hood Over The Sensor To Prevent Malfunctioning Due To Toilet Paper. They Fit In The Same 3/8" Diameter Holes That Your Present Probes Use. Grey 4 Pack