Tis the Season for Holiday Savings
Get an accurate reading of waste levels in your RV's gray-water tank. Extra-long sensors are surrounded by Teflon to prevent false probe contact and incorrect sensor readings. Fits 3/8" diameter holes. Connects to existing wiring.
Features:
How Miracle Probes Work
The monitor for your RV's gray water tank shows a full reading when electricity is flowing between the tank's sensors. This circuit of electricity is completed when there is water or sludge in your tanks. If your empty tank is showing a full reading, that means water and sludge has built up on the sensors or the sides of the tank. This buildup completes the electrical circuit to give you a false reading.
Unlike other sensors, which are prone to false readings due to buildup, Miracle Probes are surrounded by Teflon. The Teflon covers each Miracle Probe like a roof, helping to prevent liquid residue or toilet paper from building up on the probe. In addition, Teflon is not a conductive material and sludge cannot stick to Teflon. Miracle Probes are also longer than standard sensors, which prevents the probes from making contact with sludge that builds up on the sides of the tank.
Because sludge cannot build up on the Miracle Probes, a complete electrical circuit is only made when your tank is full and the water or sludge in the tank makes contact with the copper tips of the probes. This means that you'll only see a full tank reading on your monitor when your tank actually needs to be emptied.
Installation
The probes easily install into your RV gray water tank's existing 3/8" diameter holes. You can also drill new holes next to the existing holes.
First, remove the existing sensors from the holes in your gray water tank and replace them with the Miracle Probes. Once you have pushed the Miracle Probes into the holes, tighten the nut on each probe to create a leakproof seal. Then connect existing wiring to the new probes.
Once installed, rotate the exterior stud so that the milled flat section of the stud is aiming down and the Teflon roof is covering the copper tip of the probe.
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Average Customer Rating: 4.7 out of 5 stars (77 Customer Reviews)
Get an accurate reading of waste levels in your RV's gray-water tank. Extra-long sensors are surrounded by Teflon to prevent false probe contact and incorrect sensor readings. Fits 3/8" diameter holes. Connects to existing wiring.Ordered latch and hinges (heavy) for Cargo trailer door and new tank sensors (very light and somewhat delicate) for our RV. Arrived in just a couple of days packed all in one perfect box with excellent packaging. Another site should take lessons from etrailer. Great price AND made in the USA!
Replaced sensors in the gray water tank on my motorhome. Working great.
Happy with this product as I am with black water version. Had them drop shipped to ETI where trailer was built. So far they are functioning flawlessly.
Great service, arrived early, just what we needed, and the price was the best we found. will be a return customer no doubt.
Mary - 06/25/2020Best probes going not I feel confident that my tanks will not over flow.
Fast shipping. Prices & shipping are so so. Have not installed the product yet but looks as advertised.
Fast shipping and Product is reasonably priced. Installed and work Great
as alsways greet job on shipping & price thankyou Jim T
Great product very easily installed.
They are as described. fast shipping
Just received and have installed. Time will tell.
Ordering was easy and they arrived on time.
Installed pretty easy.
delivered as described,happy buyer
Easy install and works great
Review from a similar Horst Miracle Probes in Smart RV
I got them a few days ago and today I installed them with little or no trouble. When I finished the tank level display showed empty. So I filled the tank with water to test them, and so far they are working well. After filling and emptying the tank the level indication returned to empty.
Review from a similar Horst Miracle Probes in Smart RV
For a while, this will just be a review of etrailer as the installation of these probes will be 'another day' since the belly cover of our Montana will need to at least partially come down and this is just not a good time.
etrailer has been great so far :-}
Review from a similar Horst Miracle Probes in Smart RV
Wonderful product. Soooo easy to install (drill new hole, insert probe correctly oriented and gently tighten seal jam nut, transfer electrical wire and secure - DONE) I have had no reoccurrence of error readings. Highly recommended. Excellent on time delivery. I am so pleased with this product.
Gary - 08/28/2019Review from a similar Horst Miracle Probes in Smart RV
Worked as expected. Thanks
Review from a similar Horst Miracle Probes in Smart RV
The black tank sensors were very easy to install. My old sensors are spin welded so I had to drill new holes. There were no instructions included but are available on the net. If manufacturers would pay attention to the fine print, "place the bottom - sensor 8" to 13" away from the others." we wouldn't have so much trouble with the readout.
Rgill - 02/05/2018Review from a similar Horst Miracle Probes in Smart RV
These sensors have a plastic hood that prevents the buildup of solids and tissure paper that produce false readings. These sensors don't provide as much data as something like the SeeLevel system, but for most casual full-hookup-to-full-hookup campers, they are plenty good enough.
Review from a similar Horst Miracle Probes in Smart RV
These were easy to install. Most RV tanks have 3/8 inch holes but the old ones can be real stubborn to remove. I remove the electrical cable, loosen, not remove, the nut closest to the washer, then use curved needle nose pliers to give some decent leverage, you may find the bulged rubber won't give without tearing the rubber (not the tank) or a portion might drop back inside the tank. They'll likely just flush out eventually but a 3/8 wood bit drilling new holes can work too. Then installing was simple just make sure the flat part on the threaded part is level so your probe shield is aligned to protect the probe.
Review from a similar Horst Miracle Probes in Smart RV
They appear to help some with false readings but still have to rinse the black and grey tank after each dump to clean the sensors. Have to fill the tanks up with fresh water and dump a second time to clean the sensors so they work properly.
Review from a similar Horst Miracle Probes in Smart RV
I installed these on both black and gray water tanks in our 1995 Itasca "Sunrise". Installation was straight forward with no unexpected issues or obstacles. They have functioned as advertised and provide much improved level readings for the tanks. I would note that I take time to rinse and flush the tanks after dumping and use a down the toilet spray wand for better cleaning.
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