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Truma LevelCheck Propane Tank Sensor

Truma LevelCheck Propane Tank Sensor

Item # TR77VR
Our Price: $85.97
Propane Accessories
Shipping Weight: 0.49 lbs
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Avoid running out of propane when you are on the road with the Truma LevelCheck propane tank sensor. Hand-held sensor determines the level in your LP tank using ultrasound technology. Works on steel and aluminum tanks 8" - 14" in diameter. Great Prices for the best propane accessories from Truma. Truma LevelCheck Propane Tank Sensor part number TR77VR can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (2)
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  • Videos (1)
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Truma Propane Accessories - TR77VR

  • Gauges and Sensors
  • Truma

Avoid running out of propane when you are on the road with the Truma LevelCheck propane tank sensor. Hand-held sensor determines the level in your LP tank using ultrasound technology. Works on steel and aluminum tanks 8" - 14" in diameter.


  • Hand-held propane sensor determines the level of propane in your tank in seconds
  • Simply hold the reader level and press against the top side of your clean propane tank
    • Red light means no gas, green light means gas
    • Move down the tank taking readings until you receive a green light
  • Flashlight function makes it easy to use in low light conditions
  • Requires (1) 9-volt battery - not included

50500-02 Truma Level Check - Ultrasound Propane Sensor

California residents: click here

Video of Truma LevelCheck Propane Tank Sensor

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Review of Truma Propane Accessories - LevelCheck Propane Tank Sensor With Flashlight - TR77VR

Hi, everybody, Andy here with and today, we're gonna take a look at this Truma LevelCheck propane tank sensor. This LevelCheck propane tank sensor is going to help you avoid running out of propane when you are out on the road. And this hand held sensor is going to determine the level of propane in your tank in seconds using ultrasound technology. It is going to work on your steel and aluminum tanks from eight inches to 14 inches in diameter. And I do wanna point out that this is not suitable for plastic gas cylinders or automotive propane tanks. So you're going to simply hold the reader level, and press this against the top side of your propane tank.

And I do happen to have a few tanks here that I want to demonstrate how this is going to work. Now, this does have a series of lights on the sensor that I'm gonna zoom in here in the next minute or so to give you a clearer look. But the flashing orange light is going to mean that it is trying to determine how much propane you have in your tank. The red light is going to mean that you have no propane in your tank. And then, the green light means that you do have propane in your tank.

So you wanna make sure that the surface that you're gonna be putting your sensor on is clean. Dirt and debris might damage the end of your sensor and, or it could obscure a good reading. So you just start from the top and you push in and you'll hear the sensor click when you push in and then you'll hear some chirps letting you know that a reading is being taken. And you don't want to drag this down the side of your tank, because, again, that could damage the end of the sensor. So I'm just moving down incrementally, and I am not finding fuel.

It looks like I keep getting a red light. Let me zoom in here just a little bit, and I'm making my way down. So the light will turn off pretty much right after you take the reading, as you can see right there. So then I'm gonna take a reading, flashing orange, and then red means that we have no fuel. So as you can see, I cannot be trusted with propane it looks like.

So let me go ahead and zoom out and find a smaller tank here. By the way, this tank like this, if I haven't mentioned it already is, of course, gonna be your standard tank that you're going to use for the most part with your barbecue grill. But your RV, or your camper, or your fifth wheel tanks might be quite a bit taller than this and it's gonna work on those as well, just as long it do as it doesn't exceed the 14 inches in diameter. I have a smaller tank here that you might find in your teardrop camper. So again, starting from the top, moving down incrementally, and it looks like I am empty on this one as well. As I zoom in here, you see on this tank that we have a pretty wide weld here. And I just wanna point out that that might affect the reading from your sensor. So you probably wanna stay away from putting that up against that weld, because that's either gonna block the reading, or give you an inaccurate reading. But again, making my way down here, and it looks like this tank is empty as well. So it's gonna be very easy to use. And as you can see, it really does take only matter of seconds for this to come up with a reading. Another feature I wanted to point out is this does have a flashlight. It's going to make it very easy to use this in low light conditions. Let me just go ahead and turn my studio lights off here real quick, just to give you an idea. This is gonna be very helpful, just to help you find your tank, maybe in low light conditions and find a good spot to take a reading. And so great little feature that this offers, and it has a little push button there to activate and deactivate that flashlight. This is powered by a nine-volt battery, and this does include a nine-volt battery. So this was gonna be ready to go right out of the packaging. And as you can see, it's a pretty handy size. Let me pull my ruler out here real quick, and just give you some overall measurements. Looks like the overall length of this sensor, we're sitting pretty close to 5 3/8 inches long. The overall width, looks like we're right at 1 3/8 inches wide. And then, the overall depth and this is probably the deepest point here, we're sitting pretty close to an inch. Now, this does include an instruction booklet to go over the features in a little more detail, and then to help you make sure that you are using this the way that it has been designed. Well, that's gonna conclude our brief look today. I do hope that it was helpful for you. Again, my name is Andy. Thank you for joining me..

Customer Reviews

Truma LevelCheck Propane Tank Sensor - TR77VR

Average Customer Rating:  4.5 out of 5 stars   (2 Customer Reviews)

Avoid running out of propane when you are on the road with the Truma LevelCheck propane tank sensor. Hand-held sensor determines the level in your LP tank using ultrasound technology. Works on steel and aluminum tanks 8" - 14" in diameter.


It does work like advertised. However, the tank cannot have much paint on it, no rust or it will not read correctly. My husband sanded off patches on each tank (4) and then it worked perfectly. He will be doing a light sanding to all of our current tanks. I ordered this one because we can use it on all tanks we have, not just one like many of other meters. I would recommend this product. In fact, we had no idea we were almost out on our tanks so we are very glad we purchased this item. We are keeping it inside a soft sock for storage just to protect the lens. That was my idea, not the manufactures. Highly recommend you watch the video prior to use.




It works perfectly, and we have found it to be very accurate


See what our Experts say about this Truma Propane Accessories

  • How Does the Truma LevelCheck Propane Tank Sensor Really Work
    The Truma LevelCheck Propane Tank Sensor part # TR77VR uses ultrasound technology to check the propane level, the same technology used in doctors offices for newborns. Simply turn the device on and run it up and down the tank, the light will turn green at the line it detects propane.
    view full answer...
  • Are There Trailer Jack Options That Allow You to Fully Open a Truck Tailgate w/ a Travel Trailer On
    Your truck tailgate hitting the electric jack on your 2022 Keystone Springdale TT is a pretty common occurrence. Unfortunately, I am not able to determine what jack you have from your RV information. But, I have listed a couple potential options. I am unfamiliar with the taller post jacks you mentioned and did not find much on them. The first thing you could look at, is if you can rotate the jack to face the side. This typically provides a couple more inches of clearance. A jack like the...
    view full answer...
  • Can Truma LevelCheck Propane Tank Sensor be Used on Two Tanks
    Yes, you can absolutely monitor two tanks with the propane sensor you asked about, which is the following part number: - Truma LevelCheck Propane Tank Sensor # TR77VR The # TR77VR is a handheld sensor so you just hold it up to any propane tank, meaning it can be used for as many tanks as you have.
    view full answer...
  • Propane Gauge Recommendation for Four 100 lb Propane Tanks
    Thanks for reaching out! The tank sensors we have that you can use for your 100 lb propane tanks are the GasStop # GS84FR and the Truma LevelCheck # TR77VR. The GasStop installs inline with your tank hoses so you'll need 4 of them while the Truma LevelCheck is an external sensor that you only need 1 of as you will physically take it over to each tank to check the level on the side of the tank. If you're wanting a system that installs on each tank and gives you all propane levels off of...
    view full answer...

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Info for this part was:

Employee Daron K
Edited by:
Daron K
Employee Alex H
Written by:
Alex H
Employee Andy C
Installed by:
Andy C

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