Mopeka Pro Check Universal Sensor - Bluetooth Ultrasonic Sensor for Steel Propane Tanks - Perfect for Propane Grills, Water Tanks & Campers - Water Level SensorUp to 250 Gallon Tanks

These Mopeka sensors work well and add a new level of convenience to monitoring propane levels. There was a period where this new Universal model was incompatible with the Victron Cerbo GX, but I am happy to report that this situation has been resolved. I can check the levels using the Mopeka app; and they now show up on the Cerbo as well. How far we've come from having to pop open the propane compartment and look at a gauge that may or may not be accurate. A few installation tips: — The process is very easy; however, you will be asked to position the sensor so its position appears inside a little circle that shows in the Mopeka app. I've never seen anyone successfully do this, either in person or in a YouTube video. It seems like the best one can expect is for the position indicator to be touching the little circle. Don't sweat this. Everything will still work. I ended up using a ruler to position the sensor. — My least favorite thing about this product is the fact that there is nothing to hold it in the spot that you've so carefully measured out. The sensor has pretty powerful magnets to hold it to the tank, but once you lube it up with dielectric grease it will slide around on the tank's surface. Annoying. Mopeka does offer a collar that can be stuck on the bottom of your LPG tank with 3M VHB tape to lock the sensor into position. This is what I have done. (The company makes two different collars. Make sure you get the one for LPG tanks.) — These sensors come with three little aluminum spacers designed to clip to the bottom of your tank in order to provide extra clearance. You may or may not need them. I did. These spacers can come loose. I would suggest using an adhesive/sealant to lock them in place. Also, these will definitely scratch up whatever the tank is sitting on. — For those needing spacers but not wanting to scratch up their propane tank compartment, Mopeka offers the "Halo", a plastic ring that goes on the bottom of your tank. These will also need to be attached with an adhesive/sealant if you want them to stay on. Unfortunately, these Halos offer less additional clearance compared to the free aluminum spacers. If you choose to use the collar I mentioned earlier, the Halos probably won't work for you. They didn't for me. Seems like this is something that Mopeka should have been able to anticipate. — Keep in mind that these spacers protect your Pro Check sensor when it's sitting on a flat surface. The teenage kid filling your tank can still set the tank down on an uneven surface or a rock and crush it. And if this kid drags the tank on the ground and knocks off one of the spacers, the sensor could get damaged on a flat surface. Bottom line: pay attention when someone else is handling your LPG tank. I'm tempted to deduct a star due to the incompatibility between the Mopeka Halos and the collars but this is a review of the sensor itself, so I won't. These sensors are game changers. I love them and I recommend these as the best solution for anyone with a propane tank they want to monitor. Five stars.

Just installed so I’ll update if anything negative happens, but so far, it seems accurate. During a recent snow storm that blanketed our area in ice, we got down to about 10% and had to call out our propane company. A small path had to be cleared to get to the tank and with the sleet coming down try and get a clear photo. Needless to say, it was cold! I looked to see if there was a wireless reader, maybe something inline with the manual dial, that could be used to look at levels from the comfort of a dry and warm room, and found this. I got it in 2 days before this review and made sure I knew what needed to be done for the install and it was easy. The bottom of my tank was dirty so I used cleaning wipes to get the area clean enough to install. You have to liberally apply the dielectric grease on the sensor and then place it. That’s it! As you can see from the photos, it is about a 3” circle. Before placing it how the sensor is read, but not connected yet. The manual dial showing just above 60% and then the app showing the same. It is working on a 500 gallon tank and I anticipate it’ll be safe, as it’s only magnets on the outside, and barring the battery being outside in extreme temps, I anticipate it’ll last quite a while.

These work great. Setup is easy and they are accurate. I use 4 of these for my rv tanks. The signal strength is good. I can view propane levels from anywhere inside and around the rv.

These work great and I would highly recommend them. The only reason I’m only giving them 4 stars is you need to use the included spacer feet (see picture) so the tank doesn’t sit on the sensor. At least I did on my tanks. I use them in my truck camper and the compartment leaves little room for anything else (see picture). The spacer feet only raise the tanks a half inch or so but that was enough for me to have to adjust the clamping mechanism. Not a big deal but something to keep in mind if your tank fits into a small space. Knowing that, I would still buy them again.

This was easy to set-up using the app and has good range using Bluetooth. I tried it on 3 different 20lb cylinders of known quantity of LPG and it read them all accurately. It sticks to the bottom fairly well, but they are rounded so it takes a few seconds to center the sensor. For my use they adhere well enough. I would not be so liberal with the grease, it only needs a dab on the sensor. This should help with movement once centered. As for replacement Mopeka grease you can buy some here on Amazon, or any silicone dielectric grease works perfect. It is the same. I am overall very pleased with this device. It is not cheap, but it's accurate and does the job well. I wasted a lot of money on inaccurate inline gauges and a scale device. The scale does work, but requires disconnection and lifting of the cylinder, and can't give you a real-time reading. Now I know at a glance where I stand gas wise.

This Mopeka Pro propane tank sensor is an absolute game-changer for my off-grid camper! The setup was incredibly easy and took just a couple of minutes. I love being able to check my propane levels right from my phone without ever stepping outside, which is a lifesaver during cold winter months. It's so accurate and reliable, giving me total peace of mind knowing I won't unexpectedly run out of fuel. I seriously can't imagine camping without it now! If you rely on propane, you definitely need one of these.

easy to install and works, finally a good way to tell how much fuel is left in the grill tank

these were very easy to mount to the tanks and program on my phone, Now I know as soon as I walk up to my trailer what my tank levels are, before I even hook up. Great product

These Mopeka sensors work beautifully on the 20 lb tanks on my RV. I initially only purchased one, but after using it I got a second one for the other tank. Installation is simple. They are held in place with magnets. You just have to apply the provided gel to the sensor. The app assists you with level placement of the sensor. I also purchased rubber rings for the base of each tank so I can't comment on the provided metal spacers. I didn't use them. Bluetooth range is very good with the rings installed - 30ish feet. If you're installing two sensors, name your tanks and your Mopeka sensors so you can keep track of them at refill time.

Muy difícil de usar

Amazing piece of kit, as soon as we put it on the bottom of the tank and linked to the app we got a reading that we had 30% of gas left in the bottle which there are no other devices that are sold that do this

Funktioniert auch mit Victron Panel. Super zufrieden

Follow the instructions and everything works fantastically. The range is excellent and it's a real advantage to know where your tanks are at. I have 3 of these, two for the trailer and one for the barbecue. An excellent product.