Valterra T21301VP Horst Miracle Probes RV Black Water Tank Sensor

The Valterra Horst Miracle Probes are engineered to solve the most common problem with RV holding tank sensors: false readings caused by sludge and soap residue buildup. Unlike standard probes, these sensors feature a patented extended-length design that positions the sensing element away from the tank walls where buildup typically accumulates, ensuring accurate tank level readings for both black and gray water tanks.

Key Features:

• Patented extended-length probe design prevents false readings from sidewall buildup
• Direct replacement for standard RV tank probes—fits existing 3/8" diameter mounting holes
• Compatible with existing monitor panels and wiring harnesses for simple installation
• Sensor positioned away from tank walls to avoid contact with residue
• Suitable for both black water and gray water holding tanks

Installation is straightforward as the Horst Miracle Probes are designed as drop-in replacements for factory probes. Simply remove the old probes, install these units in the existing mounting holes, and connect to your current wiring. No modifications to your RV's monitoring system are required, making this an ideal upgrade for more reliable tank level monitoring.