70mai External TPMS Sensor : Real-time tire pressure monitoring
If you're the kind of person who spends more time in the driver's seat than out of it, the 70mai External TPMS Sensor is like having a co-pilot for your tires. It keeps an eye on your tire pressure in real-time, so you can focus on the road ahead without worrying about what's happening beneath you. Perfect for those who live out of their car (or just feel like they do).
And here's the kicker: it runs on sunlight. That's right, the central unit sips power from a built-in solar panel, with a microUSB port as backup—because even the sun takes a day off sometimes.
Now, a heads-up: you'll need a pro to get these sensors installed. They replace your regular tire valves and chat with the central unit over Bluetooth, sending pressure updates in BAR every 5 seconds. It's like your tires are texting you their status—no read receipts, though.
Why you'll love it? Well, besides the obvious safety perks, it's a breeze to use (once it's installed, that is). The display is crystal clear, it won't hog your dashboard real estate, and it updates so often you'll never miss a beat—or a drop in pressure.
In the box, you'll find: 4 sensors (obviously), 4 locknuts, a wrench (because someone's got to do the tightening), and a user manual (for when you pretend you don't need instructions).
- Solar-powered with microUSB charging option
- Bluetooth connectivity
- Automatic synchronization with central unit
- Compact design
- Real-time tire pressure monitoring
General specs
- Brand: 70mai
- Model: External TPMS Sensor
- Seller: Vsesmart
- Connectivity: Bluetooth
- Power Source: Solar panel, microUSB
- Update Frequency: Every 5 seconds
- Display: Digital
- First listed by seller: 1/2/25
If you are interested in more details, you can find full information on the seller's page.
Shipping options
United States
Comparison with similar products
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|---|---|---|---|---|---|---|
70mai External TPMS Sensor Real-time tire pressure monitoring
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Car TPMS with Temperature Monitoring Real-time tire pressure monitoring
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Solar TPMS with External Sensors Solar powered
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Home Of Auto Parts TPMS Solar-powered digital clock
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| Brand | 70mai | AINYSZIN Automotive Parts | LEEPEE Automotive Parts | VehicleKit | FORAUTO | Home Of Auto Parts |
| Model | External TPMS Sensor | TPMS | ||||
| Color | ||||||
| Rating |
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| Price | $49.45 | $99.06 | $28.98 | $58.54 | $36.93 | $101.06 |
| Seller | Vsesmart | Joom | Joom | Joom | Joom | Joom |
| Update | August 11, 2025 | August 22, 2025 | August 16, 2025 | August 19, 2025 | August 24, 2025 | August 23, 2025 |
| Power Source | Solar panel, microUSB | Solar, USB | Solar-powered | |||
External TPMS Sensor
Daniel W.
Vancouver, BC
August 15, 2025
as a driver who's always on the road, this felt like having an extra set of eyes on my tires. i installed it a couple of weeks ago, and it's been reliable so far. the pressure updates come through consistently, and i appreciate how it helps prevent issues before they become problems. the setup was straightforward once i got a pro to handle the sensor part, and the manual was clear enough for reference. overall, it's a solid investment for peace of mind, and it seems durable. i'd recommend it to fellow car enthusiasts looking for an affordable safety boost.
- Pros: to be fair, the real-time monitoring is a game-changer for safety, keeping me informed without distractions, and the solar power with backup charging means i never worry about battery life, which is fantastic for my budget. the display is clear and compact, fitting well in my car without clutter, and updates come so frequently that i always feel in control.
- Cons: the installation requires a professional, which added to the cost upfront and was a bit of a hassle to arrange, and while the solar charging is great, on cloudy days it relies more on the backup, which isn't ideal but manageable.
Noah C.
Seattle, WA
August 3, 2025
i've been using this for a couple of weeks now, and it's already made me feel a lot safer on my commutes. the real-time updates are spot on, and i love not having to worry about charging it all the time. it's like having a little guardian angel for my tires. sure, the installation was a bit of a pain, but once it's on, you forget it's even there—until it saves you from a flat, that is. for pet owners like me who often drive with their furry friends, knowing your car is in top shape gives you one less thing to stress about. definitely a solid buy.
- Pros: from what i feel, this thing is extremely handy for someone like me who's always on the road. the fact that it keeps tabs on tire pressure without me having to lift a finger is a game-changer. the solar power bit is genius, and the display is so clear even my grandma could read it without her glasses. plus, it's compact enough not to clutter up the dash.
- Cons: the only downside is needing a pro to install the sensors. it's a bit of a hassle, especially if you're not the type to usually rely on others for car stuff. also, while the solar charging is cool, i wonder how it holds up in seattle's famous gray skies.
Olivia G.
Dallas, TX
July 14, 2025
so, why did i choose this? well, as someone who drives a lot for work, safety is a big priority. this little gadget keeps me informed about my tire pressure without me having to constantly check. it's like having a silent guardian for my tires :) the installation was a bit of a process, but once it was set up, it's been whisper quiet and super reliable. the solar charging is a brilliant touch—i hardly ever need to use the backup charging. it's been a great addition to my car, and i'd definitely recommend it to anyone who spends a lot of time driving.
- Pros: from what i feel, the real-time updates on tire pressure are super helpful, especially for someone like me who's always on the road. the display is easy to read and doesn't take up much space, which i appreciate. plus, the fact that it charges with sunlight is a game-changer for me :)