OBDResource
Super EL50448 Ultra Super EL50448 UltraTPMS Relearn Tool
Super EL50448 Ultra
SKU: SKU CC0396
- 4-in-1 Multi-Function TPMS & Signal Diagnostic Tool
- Accurate 4-Frequency RF Detection with LED Indicators
- Wide Vehicle Compatibility for TPMS Relearn
- Ideal for DIY Users and Professional Technicians
- User-Focused, Practical Design
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- U.S. warehouse
- 3 Years warranty on eligible products
- Free Returns
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FEATURE HIGHLIGHTS
Core Capabilities
See It in Action
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4-in-1 Multi-Function TPMS & Signal Diagnostic Tool
The OBDResource Super EL50448 Ultra integrates four essential functions in one compact device: TPMS relearn/reset, RF frequency detection, IMMO immobilizer signal testing, and IR infrared remote detection. It works both as a professional TPMS relearn tool and a car remote control tester, helping diagnose multiple vehicle electronic issues efficiently—no need for multiple tools.
Accurate 4-Frequency RF Detection with LED Indicators
Built with advanced RF detection technology, this frequency detector accurately identifies four common signal bands via intuitive color-coded LEDs:
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315MHz – Green
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433MHz – Orange
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868MHz – Red
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902MHz – Blue
The instant visual feedback allows fast signal recognition, making operation simpler and more reliable than traditional TPMS reset tools.
Wide Vehicle Compatibility for TPMS Relearn
Designed as a reliable TPMS reset and relearn tool, the Super EL50448 Ultra supports vehicles using 315MHz / 433MHz TPMS systems. It is widely compatible with major automotive brands, including GM and Ford, making it ideal for common TPMS relearn procedures after tire rotation or sensor replacement.
Ideal for DIY Users & Professional Technicians
This versatile tire pressure sensor reset tool helps diagnose:
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TPMS relearn failures
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Abnormal tire pressure warnings
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RF frequency signal issues
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IMMO immobilizer signal problems
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IR remote control malfunctions
Perfect for car owners, automotive DIY enthusiasts, and professional repair shops.
User-Focused, Practical Design
Engineered for daily use, this TPMS tool features:
Buzzer alert for valid signal detection
Non-slip ergonomic grip for one-hand operation
Low-battery reminder via PWR LED flashing
Powered by 2 AAA batteries with smart sleep mode for long battery life
Compact & portable size, easy to store in your toolbox or vehicle
Package includes:
Super EL50448 Ultra x1
Quick start Guide x1
User Manual x1
PRODUCT OWNERSHIP
Resources & Support
Find product documentation, available updates and technical help.

Super EL50448 Ultra
- 5 stars: 16 (80%)
- 4 stars: 4 (20%)
- 3 stars: 0 (0%)
- 2 stars: 0 (0%)
- 1 star: 0 (0%)
5 out of 5 starsFixes a problem that should not have ever been a problem from the factory.
Finally able to reprogram my tpms after a tire rotation. It saves me money because I would have to drive to town to get them done at a tire shop since I could not DIY. After reading the instructions, it was a pretty easy process and took about 10 minutes to do all 4 tires. I am using this on a Chevy truck as the truck will not automatically registers which tpms is in which location. It was easy to connect and tell the tpms which location it was in.
Works well as a TPMS diagnostic tool on my F-150
I picked this up mainly to check on a couple of tire pressure sensors I suspected were going bad. It correctly recognized TPMS on all four wheels of my F-150, and helped me confirm that two of them likely have low batteries — which is exactly what I needed to know before replacing anything.
As a bonus, it also picked up the aftermarket TPMS units on my trailer, so it's handy for RV/towing setups too, not just factory sensors on the tow vehicle.
I also tested it against several of my key fobs, and it correctly read the frequencies on those as well. Didn't need the relearn function this time around, but it's good to know it's there if I ever swap a sensor.
Overall, solid little diagnostic tool for anyone who wants to troubleshoot TPMS issues themselves before paying a shop just to tell you which sensor is dying.
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The OBDresource EL50448/RF808 features a multiple frequency band and IR detection capability and includes IR detection. The compact unit runs on 2-AAA standard batterys and has an automatic shutdown after 180 seconds. This universal tool detects most standard automotive fobs, standard TV ( etc) remotes and other RF controlled devices remotes. Great tool for visually testing all those remotes around the house as well !!The unit is very simple to use, turn it on, bring the fob/remote close to the detector and the correct band LED lights up and includes an audio alert. I have enclosed a short video of this operation.An additional feature that has been included is a TPMS relearn feature. Just short press the power button while placing the device next to the tire ( TPMS ) stem and repeat for each tire as specified by your vehicles manufacturer.Quality, ease of use , and correct operation considerations give this product a solid 5 stars.
This TPMS relearning tool worked exactly as needed to relearn the TPMS modules on my 2020 Nissan Frontier SV. Once I put the truck into learning mode, the tool was able to communicate with the vehicle right away and successfully reset the TPMS sensors located in the valve stems. The process was straightforward and easy to follow.As each wheel’s TPMS sensor was recognized by the truck, the horn beeped to confirm that the sensor had been detected, which made it clear when it was time to move on to the next wheel. My truck required the sensors to be relearned in a specific order, so it is important to check your vehicle’s procedure ahead of time to make sure you start with the correct wheel.An added bonus was that the tool also provided information about my key fob. It showed which frequency range the key fob was transmitting on, which confirmed that it was working properly and did not need a battery replacement. This tool saved me a trip to the shop and made the entire process much easier than expected.
Amazing tool for the wireless devices on vehicles from tire pressure sensor to the remote FOB functionality. This detects several different range of frequencies of the different devices. From programming to diagnostics this is a useful tool for any shop. It is affordable and does so many functions. Made well ,see pictures. Completely portable for on call needs.
In all honesty, I'm not sure how to rate this device. It would identify the freq of my BMW car remotes (433 mhz) but not the TPMS sensors on any of my cars (should also have been 433 mhz). I read the instructions and it appears it SHOULD identify a TPMS sensor before invoking a full reset but I could not get it to do so. I got this item to be able to check the internal batteries on my TPMS sensors but I do not want to implement a full reset. (I have a track car where tires/wheels can go unused for almost a year and after several seasons its not clear when the TPMS sensors might need to be replaced). I could not get it to check the freq on known good TPMS sensors (thereby confirming the TPMS batteries were OK) However, I don't want to rate the product too harshly as the instructions are not totally clear on this.I did purchase a TPMS Reset tool many years ago for my GMC Tow Vehicle and it was very expensive (several hundred dollars). However, I only needed to reset it once when adding snow tires/wheels to the vehicle. If this device actually works to reset the TPMS system, it would be well worth the cost.
5 out of 5 starsThis saves time and money ,do it yourself
Low cost for a tool that does so much . From resetting the Tpms tire sensor to testing key fobs this 5 in 1 tool is a time saver. Works on most all domestic cars and trucks . Saves money by avoiding costly repair shops . Unit covers several different frequencys for testing fobs and other immo units . See pictures . Comes with instructions.
The OBDResource 5-in-1 TPMS Relearn Tool has been an excellent addition to my automotive toolbox. What I appreciate most is its versatility. In addition to TPMS relearn functions, it includes a frequency tester and remote key tester, making it a useful diagnostic tool for multiple vehicle maintenance tasks.
The quality is impressive for the price. The device feels solid and well-built, and the buttons are responsive and easy to use. The screen is clear and makes navigating the different functions straightforward, even for someone who doesn't use diagnostic tools every day.
The TPMS relearn feature worked as expected and helped save a trip to the dealership. It quickly detected sensors and made the relearn process much easier. The frequency tester and remote key tester are also very useful for troubleshooting, helping verify whether sensors and key fobs are functioning properly before replacing parts unnecessarily.
The tool is compact enough to keep in a glove box or toolbox, yet powerful enough to handle a variety of common diagnostic needs. Considering the features included, it offers outstanding value for the money.
Overall, this is a high-quality, reliable, and easy-to-use tool that performs exactly as advertised. If you work on your own vehicles or want a convenient way to diagnose TPMS sensors and key fobs, this is a great investment. Highly recommended!
Stop paying dealership fees every time you rotate your tires with the phenomenal OBDResource 5-in-1 TPMS Relearn Tool. This incredibly powerful, multi-functional device flawlessly resets the tire pressure monitoring sensors across a massive array of domestic vehicles, including Ford, GM, Cadillac, Dodge, Chevrolet, and Chrysler. Beyond standard TPMS resets, the absolute genius of this device is its built-in frequency tester and infrared signal tester, allowing you to instantly diagnose dead remote key fobs or faulty garage door openers. It is an incredibly rugged, highly versatile diagnostic tool that pays for itself after a single use.
Pros:
Brilliant 5-in-1 functionality handles TPMS resets, frequency testing, and remote key diagnostics
Massive compatibility seamlessly resets TPMS sensors on almost all major domestic vehicle brands
Instantly identifies dead key fobs or weak infrared signals, saving frustrating diagnostic time
Incredibly easy to use, saving you expensive trips to the mechanic for basic tire rotations
Cons:
Primarily engineered for Ford/GM/Chrysler vehicles; it will not work for TPMS resets on many European or Asian imports
Requires a brand new, highly powerful 9V battery (not included) to broadcast a strong enough reset signal
This TPMS and frequency tester is an absolute must-have for the home garage. It delivers spectacular, professional-grade diagnostic capabilities in the palm of your hand, completely streamlining vehicle maintenance and troubleshooting.
I absolutely love the OBDResource Super EL50448 Ultra! This 4-in-1 tool is a game changer for anyone who wants an all-in-one device for tire pressure resets, frequency detection, IMMO system diagnosis, and IR remote testing. The frequency detector is super precise and easy to use with its color-coded LED lights that instantly tell you what frequency you’re dealing with—no guesswork needed. It works perfectly with 315/433MHz TPMS systems and is compatible with big brands like GM and Ford, which is great for my car and a few others I work on.What I really appreciate is how versatile it is. Whether you’re a DIY enthusiast or a pro mechanic, this tool handles everything from tire pressure issues to immobilizer and remote control faults. The buzzer alert for valid signals and the non-slip grip make it really user-friendly, and the smart sleep mode plus low battery reminder mean I don’t have to worry about it dying on me unexpectedly. Plus, it’s compact enough to keep in my toolbox or glove compartment without taking up space.Overall, this tool has makes vehicle maintenance so much easier and more efficient. Highly recommend it for anyone looking for a reliable, multifunctional TPMS tool! Five stars all the way!
This is the first time I own a TPMS tool. Since I got it through the Vine program, I thought it would be worth while trying since one of my sensors on my Toyota Sienna kept setting off the alarm.This tool is super easy to use, and had a lot of functions. I only used the TPM sensor finder and reset, and it worked like a charm. My local tire place couldn't get the alarm on the dashboard to clear, but within minutes this tool reset the sensor, and everything works perfectly now.Yes, it's not cheap. But it's cheaper than paying a shop to wave THEIR magic wand to clear the TMPS alarm.I am looking forward to testing the other functions, too. If they work like the sensor finder/reset, this is a total keeper.
This TPMS relearn tool does exactly what it’s supposed to do — and does it well. It’s straightforward to use, responsive, and worked immediately when resetting and testing tire pressure sensors. The frequency detection is accurate, the indicators are clear, and the device itself feels solid and well-made.I really appreciate how intuitive the layout is. You don’t need to be a professional mechanic to figure it out, but it’s definitely capable enough for serious use. The grip is comfortable, the buttons are responsive, and it doesn’t feel cheap or flimsy at all.This is one of those tools that pays for itself quickly by saving time and avoiding unnecessary trips to the shop. For the price, the functionality and reliability are excellent. If you deal with TPMS sensors at all, this is a very handy tool to have on hand.
If you switch between winter and summer tires, or if you rotate your tires at home, a TPMS reset tool is a "no-brainer" purchase. It saves a single trip to the dealership or tire shop, paying for itself in one use. This unit goes further, and will test frequencies given off by your key fob, to make sure it is working correctly. It has several other different options that I haven't tested out yet but it fixed my TPMS sensor dash light on my 2008 chevy malibu .
The OBDResource Super EL50448 Ultra is a multi-functional diagnostic powerhouse designed for the automotive enthusiast and professional technician who demands precision beyond a standard tire pressure reset. While most tools in this category are limited to simple TPMS activation, the Super EL50448 distinguishes itself as a "4-in-1 Wireless Master," integrating a universal frequency detector and an infrared IMMO (Immobilizer) signal tester into a single, handheld chassis. This allows users to not only relearn tire sensors after a rotation or replacement but also to verify the health of key fobs and remote start signals before beginning a complex diagnostic procedure. Built with an upgraded high-sensitivity sensor, the tool provides instantaneous feedback through a clear LED interface, making it an essential companion for maintaining vehicle safety systems and troubleshooting electronic entry issues with surgical accuracy.The HighlightsProsComprehensive 4-in-1 Utility: Combines TPMS reset, frequency detection, infrared signal testing, and sensor activation, replacing the need for multiple single-use tools.Universal Compatibility: Engineered to support a vast range of domestic and imported vehicles, making it a versatile asset for a multi-car garage or professional shop.Diagnostic Verification: The frequency detector allows you to confirm if a key fob is actually transmitting, potentially saving hours of troubleshooting on "no-start" or "no-entry" issues.Rugged Handheld Design: The ergonomic, impact-resistant casing is built to withstand the drops and spills typical of a busy workshop environment.ConsBattery Dependency: Requires a high-quality 9V battery (often not included) for peak signal strength; using a low-drain battery can result in inconsistent sensor triggering.Manual Entry Requirements: While it activates the sensors, the vehicle itself must still be put into "Learn Mode," which varies by manufacturer and may require consulting the owner's manual.The Final VerdictThe OBDResource Super EL50448 Ultra is an exceptional value proposition for anyone looking to take control of their vehicle’s electronic maintenance. It transcends the limitations of basic relearn tools by offering the ability to "see" invisible signals—whether that is the 315/433MHz pulse of a tire sensor or the infrared beam of a smart key. This level of insight is invaluable for confirming whether a component has truly failed or simply needs a reset, preventing unnecessary replacement costs. For the DIYer performing seasonal tire swaps or the technician streamlining their diagnostic workflow, this 4-in-1 master tool offers a level of reliability and functional diversity that makes it a standout investment in any automotive toolkit. It is a robust, intelligent solution that brings professional-grade signal analysis to the palm of your hand.
This TPMS tool has worked with older Chryslers and newer GMs and 10-year-old Fords. I've tried it on many vehicles for different tasks and I'm always able to get it to work so far. I think it's excellent and well made. It properly detects the megahertz frequency of the signal that is being used by that manufacturer and I'm able to perform resets. I'm also able to reprogram the tires in order going around the car so that they are set to work with the TPMS system in the vehicle. This is extremely handy and it takes the place of multiple separate relearn tools Plus it does Diagnostics that have been helpful. My experience with it has been great and I think it's an amazingly good value price to get everything in one detector and programmer tool. I recommend it.
This TPMS relearn tool is great to have vs shop prices overall. If youre slightly handy and want to save some money and a trip to the shop, this is the way to go. Overall it was easy to use once you read the instructions, the only hard part was getting the relearn tool to identify the TPMS in my truck, it took a few tries, but it got it! Fixed a lot of the low pressure light issues I had because I got new TPMS without programming them. Well worth a purchase if you have the know-how!
This slick little device gave me feedback on stuff I didn't realize I wanted to know.For example, it shows me when my key fob is working or not, the IR remote batteries are dead, when my kids remotes on their cheap toys broke, and more! I'm hoping the TPMS reset tool works on my GM cars, but couldn't verify that yet.
The instructions are a little peculiar, but this TPMS sensor picked up the code from my remote fob as well as all five of my tire sensors. Super easy to use.
This tool is simple to use and comes with clear, easy-to-follow instructions. I bought it because my dashboard was showing an incorrect tire pressure reading and I wanted to rule out a relearn issue before replacing anything.It successfully reset the TPMS sensors as advertised. The incorrect reading didn’t go away, but that actually helped confirm that the problem is a failing sensor in that wheel rather than a relearn issue. In that sense, it saved me time and guesswork.I haven’t needed the extra features for real-world use yet, but I did a quick test of the IR and frequency detection modes and they both gave proper feedback, so those functions do work. The device feels solid in hand, the indicators are easy to understand, and it’s straightforward to operate.Overall, this is a practical, no-frills TPMS tool that does what it claims and is useful for diagnosing problems instead of blindly throwing parts at a car. Definitely worth having if you do your own maintenance.
Used this to trigger TPMS relearn on a Ford truck. The tool activated the sensors as expected during the relearn procedure without needing a dealership scan tool.The operation is straightforward, and it responds immediately when placed near each tire. This saves time and cost when replacing sensors or rotating tires.Very useful tool to keep in the garage if you service your own vehicles.