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Old 12-21-2017, 11:50 AM   #1
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Rand McNally Wireless TPMS ?

Hi Guys,

Has anyone used, tried to use, or can offer ANY insight into the Rand McNally wireless TPMS system that has an Android supported app.

I'm looking to use said system on my TT. It has a rechargeable receiver that transmits pressure and temperature data gathered from four external valve stem sensors via Bluetooth to an app installed on a smart phone.

Any experiences, firsthand or otherwise would be greatly appreciated.

Season's Greetings to everyone...
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Old 12-21-2017, 05:14 PM   #2
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I haven’t heard of that one, being bluetooth. I would fear that the Bluetooth would not consistently reach the phone. What reviews have you seen so far, or maybe you haven’t since your here asking. I know some of the other brands require a booster on whatever frequency they use. I’ve been happy with my TST system.
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Old 12-21-2017, 06:57 PM   #3
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Here is the numbers for bluetooth, depending on the power.


Device Class*Transmit Power*Intended Range

Class 3 1 mW less than 10 meters (32feet)

Class 2 2.5 mW 10 meters, 33 feet

Class 1 100 mW 100 meters, 328 feet
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Old 12-22-2017, 05:42 AM   #4
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Steve, thanks, Mark, that's awesome information.

I believe it's running Bluetooth 4.0. I too had checked the range and found somewhere that line of sight BT quoted 100'.

The kit comes with 4 valve stem sensors, and a receiver that then transmits to a smart phone app.

Since my TT is 34' long, and the wheels are sort of in the middle, If I place the USB rechargeable receiver in the TT right at the front, it's going to be equidistant between the wheels and my cell phone in my truck, therefore needing a receive/transmission range of 25 ish feet.

I have a USB receptacle in the bedroom which is energized when the TT is plugged into my truck, so by plugging the Rx in there, I know it'll be delivering a max power signal.

My logic seems reasonable, or maybe I'm deluding myself. I think the only solution is a trip to Best Buy who has the kit on sale for $49.95 and give it a try. They do after all offer a 30 day money back guarantee...

I'll let you know how it works out.....Oh Santa !!
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Old 12-23-2017, 09:21 AM   #5
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So, I called Rand McNally technical department and posed the question of using the four sensors on my TT, and positioning the receiver near the front wall of my TT.

Apparently no-one had asked this before as they had to poll several members of their technical staff to find an answer, and since nothing negative was forthcoming, and Best Buy has a phenomenal return policy, I decided to bite the bullet and give it test.

During some last minute, late night shopping, (completely by accident you understand), I found myself right there in Best Buy. And guess what.....there all neatly boxed was a handful of the Rand McNally TPMS systems.

$49.99 later and it's now mine.



If nothing else the packaging and presentation are impressive, let's just hope it performs as well as it looks.

I'll install it after the holidays as we're going on a road trip first part of January and report my findings, check back if you interested to hear the results, I sure am.

Happy Christmas everyone.
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Old 01-10-2018, 06:50 PM   #6
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Looks pretty neat system. One guy brought his truck to the shop for new tires and ion wheels installation plus a brake job. He mentioned about the wireless TPMS and I had no idea until I read here. Installed them already?
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Old 01-11-2018, 06:13 PM   #7
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Your question was timed to perfection.

We've just arrived at our destination in GA having traveled some 300 miles on the I-75 from our home in Florida.

This was the first run out for 'Harvey' with the TPMS system.

I installed the four valve stem sensors in accordance with the directions supplied by Rand McNally, which took all of five minutes.

Downloading the App to my Smart Phone took another 2 or 3 minutes, and once I opened it the phone instantly recognized the sender unit I'd charged via a USB adapter the night before and strategically placed on the bed in the front of our trailer. From there it relays tire pressure and temperatures in a very clear, easy to read format for each of the four wheels.

You have to set your nominal tire pressure in the app, it then reacts to changes of + or - 20 psi. I like to run at 50 psi so the alarm goes off if the pressure drops to 30 or balloons to 70 psi.

I purposely dropped the pressure of one of the tires to outside the pressure range I'd pre-set in the app, (which is very simple) and sure enough the audible alarm sounded instantly on my phone.

The app also gives a read out of the voltage from the watch batteries that power the wheel sensors.

Extremely cool....huh?

So, back to today, I had the monitor active for the entire trip and had my wife periodically summon the app to review my tire pressures and temperatures. (I'm a stickler for NOT using phones etc. while driving.....in fact I wish we could un-invent texting)

Apart from minor temperature variations as we drove on rain soaked then sun baked blacktop everything remained constant.

I can't tell you what a comfort this is knowing there's something watching the bits we can't see when we're on the highway.

Now, short of a catastrophic tire carcass failure, anything else tire related that fate decides to throw at us should come with a bit of a heads up.

Drive Safe everyone.
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Old 01-11-2018, 10:59 PM   #8
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Thanks for the update Biggles. It sounds like it performed well.

Edit: Is there any way to hardware the sending unit so it doesn’t have to be charged up regularly? I see you have a usb that is charged when driving, so that is convenient. Not sure how that works though, unless you maybe have an inverter for the 120v ac.
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Old 01-12-2018, 11:41 AM   #9
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Most Rv's have a 12v receptacle by the tv. You can plug an automotive usb charger into that and it will charge the TPMS. I also have a 12v receptacle in my Rv basement near the front of the 5th wheel.
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Old 01-15-2018, 01:50 PM   #10
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Quote:
Originally Posted by mark5w View Post
Most Rv's have a 12v receptacle by the tv. You can plug an automotive usb charger into that and it will charge the TPMS. I also have a 12v receptacle in my Rv basement near the front of the 5th wheel.
I too have a factory hardwired USB charging port on the wall above the sofa.

But here's something I discovered yesterday. (Every day turns into a road test of something or other....)

I found by experimentation that the signal range between the sensors on the valve stems and the transmitter is consistently greater than that of the transmitter to my cell phone. with the transmitter in the bedroom I occasionally lost the signal, but by having it in the truck it didn't drop out once between Atlanta and Orlando yesterday. So it kind of makes the previous discussions moot, as I'll now keep the transmitter plugged into USB power outlet in my truck.
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