---
product_id: 143021406
title: "M12-3 model"
price: "919 kr"
currency: DKK
in_stock: true
reviews_count: 13
url: https://www.desertcart.dk/products/143021406-m12-3-model
store_origin: DK
region: Denmark
---

# 5 customizable alarm modes for safety Low power sensors with 2-year lifespan Auto solar charging extends battery life M12-3 model

**Price:** 919 kr
**Availability:** ✅ In Stock

## Summary

> 🚐 Stay ahead of the road with solar-powered tire intelligence!

## Quick Answers

- **What is this?** M12-3 model
- **How much does it cost?** 919 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/143021406-m12-3-model)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Energy-Smart Display:** Auto backlight and sleep mode maximize battery life while keeping data visible day or night.
- • **Plug & Play Installation:** Lightweight, compact sensors with secure locking nuts make setup a breeze for any RV owner.
- • **Solar-Powered Reliability:** Harness the sun to keep your TPMS running nonstop—no more dead batteries on the road.
- • **Comprehensive Safety Alerts:** Stay ahead with 5 alarm modes that notify you instantly of pressure drops, leaks, or overheating.
- • **Effortless Sensor Management:** Swap tire sensor positions without reinstalling—save time and keep rolling.

## Overview

The Tymate M12-3 RV Tire Pressure Monitoring System features 4 external sensors with ±3 PSI accuracy, powered by durable solar lithium batteries and backup USB charging. It offers 5 customizable alarm modes, an auto-adjusting LCD display with sleep mode, and easy sensor position swapping—ensuring real-time, reliable tire data for safer, smarter RV journeys.

## Description

Buy Tymate RV Tire Pressure Monitoring System - M12-3 Tire Pressure Monitor System (0-87 PSI) with Solar Charge, 5 Alarm Modes, Auto Sleep Mode, LCD Display, RV TPMS with 4 Sensors, Easy to Install: Tools - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Works great very pleased. - I bought this system 2 years ago. It since it is wireless and solar powered it installs easily. It was it has worked flawlessly and displays tire pressure and temprature for each tire on the same display (no rotating display that you have to wait for each tire to display in turn) and just a quick glance tells you what you need to know and the solar charging is ample to run it during the day and all night with the back light on all the time in the dark. Setting the customizable lower and upper pressure limits, the other it has alerted me to the a slow leak in the left rear of that otherwise I had no reason to check. Finally, just a quick glace lets you know that the pressure is balanced side to side and the correct pressure front and rear before you get on the road.
Review: Easy to read; accurate; small; works well; looks good - Overall, this is a pretty decent item. I've only had it for 6 months now, but I really like it. It's especially nice because it's pretty accurate and costs ~$50-60 (wait for a deal) and I don't have to waste money going to get new sensors replaced for $100+ a TPMS sensor. Overall, it was worth the purchase as it's very convenient to see the current pressure/temperature for each wheel (if you don't have that with your vehicle already). This product works by replacing your cap for the air valve with a sensor and nut. Once the cap is off, you thread on the [locking] nut and then put on the sensor hand tight. You then "loosen" the nut which winds up using friction to keep the sensor tight in place so someone (without the included 1/2" offset wrench) cannot remove the sensor(s). It takes an extra 10-20 seconds to add air into each tire because of this mechanism, but it's not a big deal. The unit itself comes with adhesive to secure to whatever surface you want which is very helpful so it doesn't move around easily. It constantly charges via the sun. Something to note: I believe the unit turns on when it senses vibration (via closing a door or starting the engine)--but can be turned on (e.g., the display) by clicking any of the buttons. It will then show whatever data was last recorded from your previous trip, BUT once the car moves it takes about 5 seconds of the wheels rolling to update the data (automatically) to the currents stats. Just be aware of that. It doesn't bother me, personally. The description says it has an accuracy of +/- 3 psi. That's an absolute range of 6 psi--a lot of room for error for my liking. Despite that error being apparently similar to other items on desertcart, I have found with my trusted digital tire gauge that this unit reads +/- 1 psi most of the time. That's really good. There's a lot of settings on the device that you can customize to your liking. Other reviews have stated that once it starts beeping (i.e., the tire pressure drops below a set threshold), the beeping will not stop until the pressure is increased. That is FALSE. All you have to do is hit one of the buttons on the top and it stops the beeping. ***Due to the small space you have to tighten/loosen the "security/locking nut", you need the included 1/2" offset wrench (feels like just sheet metal or the type of wrench that comes with furniture). I have an assortment of tools and cannot find a tool that would suffice. Maybe a small open-end 1/2" wrench that is bent or an open-end crowfoot could do it. But a flare nut crowfoot or standard open-end wrench will not do it. I cannot find the included wrench anywhere; so if you lose it, it might not be fun. I WISH THEY WOULD INCLUDE 2 OF THESE WRENCHES IN THE PACKAGE.

## Features

- [Auto Solar Charge]: Tymate Tire Pressure Monitoring System M12-3 Black is Automatic solar charging, using higher quality and more durable solar lithium battery panels, which can extend the use time and help focus driving. Drivers don't have to worry about the continuity of product work often (AC / DC charging can also be used when there is no sunlight)
- [Five Types Of Alarms And User-set Alarm Values]: Tymate Tire Pressure Monitoring System M12-3 Black equipped with five-alarm modes (high pressure, low pressure, high temperature, rapid air leakage, sensor low battery alarm), promptly reporting the abnormal tire condition to the driver to help safe driving. After pairing, the systme will automatically set the current pressure when installed the sensor as reference pressure (Alarming Range is +25% PSI to -15% PSI of Reference Pressure)
- [Auto Backlight & Sleep & Awake Mode]: Tymate Tire Pressure Monitoring System M12-3 Black's auto-adjustable backlight can clearly display the data in low light or strong light environment. Real-time monitoring and real-time display of data is the best helper for driving. It will enter the sleep energy-saving mode after the vehicle stops running for 10 minutes, and will automatically wake up when the car is turned on. Prolong product life while saving energy
- [Low Power Consumption And Long Working-life Sensor]: Tymate Tire Pressure Monitoring System M12-3 Black equipped with 4 advanced external sensors, which are low power consumption and have a long working life (2 years maximum). Small size, light-weight, high accuracy of sensing tire pressure (error range ≈3psi), and easy installation. It also can withstand harsh environments
- [Tire Position Exchange]: Tymate Tire Pressure Monitoring System M12-3 Black provides the function of changing the tire position. If the driver needs to change the tire position during use, he can directly exchange the position of the sensor in the monitor without reinstalling sensor. Help the driver save time and energy to do more important things. Any problem encountered, please contact our customer service team

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07S7CP3PB |
| Batteries | 4 Lithium Metal batteries required. (included) |
| Best Sellers Rank | #42,213 in Automotive ( See Top 100 in Automotive ) #10 in Tire Pressure Monitoring System Tools |
| Brand | Tymate |
| Customer Reviews | 4.3 4.3 out of 5 stars (3,474) |
| Date First Available | May 24, 2019 |
| Item Weight | 10.9 ounces |
| Item model number | Tymate M12-3 black |
| Manufacturer | Tymate |
| Manufacturer Part Number | Tymate M12-3 black |
| Model | Tymate M12-3 black |
| Product Dimensions | 6.3 x 4.72 x 1.97 inches |

## Images

![M12-3 model - Image 1](https://m.media-amazon.com/images/I/614LXrxsePL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Will they work on a 30 foot travel trailer?**
A: Yes, but I would not buy another Tymate.  We have the four and six monitoring systems.  The four one has a senior that has not worked properly since we bought it.  The company will not respond to my request for help.  Now all of the sensors don’t work.  We had it only 5 months when it quit working.  They advertise a 24/7 help line.  Good luck with that. No phone number to call.  I give these a 0 rating.

**Q: How get in touch with the seller?**
A: It’s not easy to get in touch with them, they don’t respond to emails.

**Q: How about the warranty service？**
A: The warranty period of our products is at least two years. If you encounter any questions about the product during use, please contact us in time  +1(855)-492-9277][EST 9am-5pm Monday through Friday].Support[tymate@afterservice.vip] or contact us directly through Amazon.

**Q: How do I contact the seller when I have a problem during use?**
A: The included instructions provide a phone number. I used it when first setting up and found the support very helpful.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works great very pleased.
*by U***M on May 23, 2026*

I bought this system 2 years ago. It since it is wireless and solar powered it installs easily. It was it has worked flawlessly and displays tire pressure and temprature for each tire on the same display (no rotating display that you have to wait for each tire to display in turn) and just a quick glance tells you what you need to know and the solar charging is ample to run it during the day and all night with the back light on all the time in the dark. Setting the customizable lower and upper pressure limits, the other it has alerted me to the a slow leak in the left rear of that otherwise I had no reason to check. Finally, just a quick glace lets you know that the pressure is balanced side to side and the correct pressure front and rear before you get on the road.

### ⭐⭐⭐⭐⭐ Easy to read; accurate; small; works well; looks good
*by S***T on April 26, 2021*

Overall, this is a pretty decent item. I've only had it for 6 months now, but I really like it. It's especially nice because it's pretty accurate and costs ~$50-60 (wait for a deal) and I don't have to waste money going to get new sensors replaced for $100+ a TPMS sensor. Overall, it was worth the purchase as it's very convenient to see the current pressure/temperature for each wheel (if you don't have that with your vehicle already). This product works by replacing your cap for the air valve with a sensor and nut. Once the cap is off, you thread on the [locking] nut and then put on the sensor hand tight. You then "loosen" the nut which winds up using friction to keep the sensor tight in place so someone (without the included 1/2" offset wrench) cannot remove the sensor(s). It takes an extra 10-20 seconds to add air into each tire because of this mechanism, but it's not a big deal. The unit itself comes with adhesive to secure to whatever surface you want which is very helpful so it doesn't move around easily. It constantly charges via the sun. Something to note: I believe the unit turns on when it senses vibration (via closing a door or starting the engine)--but can be turned on (e.g., the display) by clicking any of the buttons. It will then show whatever data was last recorded from your previous trip, BUT once the car moves it takes about 5 seconds of the wheels rolling to update the data (automatically) to the currents stats. Just be aware of that. It doesn't bother me, personally. The description says it has an accuracy of +/- 3 psi. That's an absolute range of 6 psi--a lot of room for error for my liking. Despite that error being apparently similar to other items on Amazon, I have found with my trusted digital tire gauge that this unit reads +/- 1 psi most of the time. That's really good. There's a lot of settings on the device that you can customize to your liking. Other reviews have stated that once it starts beeping (i.e., the tire pressure drops below a set threshold), the beeping will not stop until the pressure is increased. That is FALSE. All you have to do is hit one of the buttons on the top and it stops the beeping. ***Due to the small space you have to tighten/loosen the "security/locking nut", you need the included 1/2" offset wrench (feels like just sheet metal or the type of wrench that comes with furniture). I have an assortment of tools and cannot find a tool that would suffice. Maybe a small open-end 1/2" wrench that is bent or an open-end crowfoot could do it. But a flare nut crowfoot or standard open-end wrench will not do it. I cannot find the included wrench anywhere; so if you lose it, it might not be fun. I WISH THEY WOULD INCLUDE 2 OF THESE WRENCHES IN THE PACKAGE.

### ⭐⭐⭐⭐ First one was a piece of junk. Second one worked flawlessly.
*by O***E on June 11, 2020*

After doing a great amount of research and review reading, I bought the Tymate solar TPS for my RV before picking it up. When it arrived, I tested it out on my car. What a pain. The sensors needed to constantly be re-synced, or tire positions changed. The buttons on the unit didn't function, and I would get stuck at a point in the menu and not be able to get out. The instructions were poor, and the unit did not respond according to the instructions. I spent over almost two hours putting things on, taking them off, putting them back on, taking them back off, resetting, reconnecting, and the until still didn't display things correctly or function correctly. I thought about getting a replacement or possibly upgrading, but if it takes this long to diagnose an inexpensive Chinese piece of junk, I'm not going to waste any more of my time. I'm buying a more expensive reliable unit with a respected name and reputation. You get what you pay for. Don't buy this unit. UPDATE - against my better judgement, and largely because the other TPMS I was interested in was twice the price, and because there were so many good reviews, I decided to give this TPMS another go and I ordered a replacement hoping that I got a lemon the first time. The good news is, so far, so good. I have tested it on my Prius and everything is working as it should. However, I bought it for a new travel trailer that I will be picking up in a few weeks, so I'm reserving final judgement until I use it on the trailer. I'm raising my initial rating from 1 star to 3 stars. Based on current functionality I would give it 4 stars (not 5 because the instructions are terrible), but I don't think I should have had to order a second unit to get one that works, so the 3 star will remain. I actually think part (not all) of my former problems were caused by the very poorly written instructions. I mean, there's not even any mention of the fact that the sensors have a CR1632 battery that you can change when it goes dead, much less how to do it. The instructions talk about standby mode. What I have learned with this second unit is that standby mode is when the unit is on an functioning. It isn't a special screen or mode you have to get into with the push of some button sequence. The instructions talk about holding the '-' and 'set' buttons together. DON'T DO IT!!!!!!! It's the factory reset, which knocks out the units recognition of the individual sensor codes. I think this is part of what messed me up with the first unit, although I still maintain that buttons weren't working when pressed. I also observed that you can't turn the unit on and off when the USB power cable is attached. The unit has to be unplugged, running on solar, to be powered on/off. By the way, you hold down the '-' button for 5 seconds for that, until you hear a beep. I'll write another update in a few weeks after I've used the unit on my travel trailer trip. UPDATE 2 - Just returned from a 2 week trip using this TPMS. It worked flawlessly. I have no complaints. I would have adjusted my rating up to 5 stars, but left it at 4 because of the first unit I received that didn't work. After using this, I can't think of any reason to put out a lot more money for a more expensive unit. I have a 24' trailer being towed by a Toyota Highlander. Reception was not an issue at all. I'm thinking about getting another set for the Highlander.

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-08-05*