Making sure your tire is in good condition will help keep your car running smoothly and safely. One of the easiest ways to do this is with a Tire Pressure Monitoring System (TPMS). But not all TPMS devices are the same. In fact, there are two main types, based on the location of their sensors: external and internal TPMS.

So, which monitoring system is right for your vehicle? In this guide, we will help you understand the differences, benefits, and drawbacks of each. You'll also see why a TPMS matters and how GUTA TPMS can make tire care easier and safer.

Understanding External vs. Internal TPMS

A TPMS is a system that checks the air pressure inside your tires and alerts you when it drops too low or gets too high. This helps you avoid a tire blowout, which is often caused by underinflated tires. 

Also, a proper pressure gauge will improve the fuel efficiency of your vehicle and extend tire life. Some TPMS systems also track tire temperature since this can affect tire health as well. There are two types of TPMS sensors:

Internal TPMS: It's installed inside the tire, usually on the valve stem. Car makers are sometimes required to include this internal pressure monitor. 

External TPMS: This is screwed onto the valve stem from the outside. You can often buy them as a third-party component. 

Each type has its pros and cons, and the best choice depends on your needs and driving habits.

Why Is a TPMS Important?

A TPMS is important for many reasons. For example, a TPMS:

Keeps you safe: A blowout makes a loud sound that can startle any driver. Also, deflated tires are more difficult to steer. However, proper tire pressure reduces this risk of driving difficulties.

Improves fuel economy: Underinflated tires use more fuel than well pressurized tires. 

Extends tire life: Proper tire pressure helps tires wear evenly, making them last longer. So it helps you save costs in the long term.

Alerts you early: You get warnings before pressure gets too low. Without a TPMS, you might not notice a slow leak or pressure loss until it’s flat or a blowout happens. 

What Is External TPMS

External TPMS sensors are screwed directly onto the outside of your tire’s valve stems. These are often used in aftermarket TPMS kits, such as those from GUTA. 

Pros of External TPMS

Easy to install: Just screw it on. You don't have to remove the tire or use a special tool.

Lower cost: It's usually cheaper to install than internal sensors.

Quick to replace or move: You can transfer them to a new vehicle in minutes. As a result, it's great for trailers or RVs that need regular sensor replacements. 

Cons of External TPMS

It's more exposed: It may wear sooner from exposure to harsh weather such as rain or sun. But many models are designed to withstand these conditions. 

Can be stolen: Since they are visible, someone might remove them unless it’s anti-theft protected. 

What Is Internal TPMS

Internal TPMS sensors are installed inside each tire, typically attached to the rim or valve stem. These are often the same type used by car manufacturers in new vehicles.

Pros of Internal TPMS

Protected from damage: Being inside the tire protects it from weather, dust, or damage.

It may be more accurate: It measures pressure and temperature from inside the tire. So it may be slightly more accurate.

Longer battery life: Many can last up to 5 - 10 years before needing replacement.

Cons of Internal TPMS

Harder to install: Installation requires removing the tire. Hence, you may need to visit a tire shop.

More expensive to replace: If one tire sensor fails, it can cost more to fix since it’s more technical and may need some expertise.

Impossible to move between vehicles: Once installed, it stays with the tire. This makes it difficult to maintain or replace.

Comparing External vs. Internal TPMS Sensors

Let’s look at how they match up in different areas:

Should I Get an External Tire Pressure Monitoring System?

Yes. Even though your car has internal TPMS, external sensors have some advantages over those. For example, an external TPMS is easier to install. You don't need any tools, only the screw and nuts. So, it's easy even for first-time users or non-technical drivers. 

Also, external TPMS sensors, like those from GUTA, send live pressure and temperature updates. So you can detect the issue before it's serious. An external TPMS is cheaper than internal systems and can be moved between vehicles if necessary. 

An external TPMS is flexible and fits most standard valve stems. So it will work on a car, trailer, or RV. The sensors use coin batteries that you can easily replace. This will save you the cost of replacing the entire sensor. Lastly, remember that an external TPMS will monitor tire temperature and pressure, alerting you to prevent tire failure.

Why Choose GUTA TPMS

GUTA TPMS is external, but it is weatherproof and reliable. Here are some of its benefits:

Real-time alerts: GUTA sensors warn you when your tire pressure drops or tire temperature rises.

Long sensor range: The 80 ft sensing distance works well even with large vehicles like trucks, trailers, and RVs. But you can get a signal booster for even longer vehicles. 

Easy DIY installation: You do not need any special tools or a visit to the tire shop. This convenience will save you maintenance costs. Also, the GUTA GT80 TPMS is super convenient with flow-thru sensors, allowing you to inflate the tire without removal. 

Anti-theft design: We have included locking nuts to keep sensors secure.

Clear display: Simple dashboard monitor shows each tire’s pressure and temperature.

Custom alerts: You can set high and low pressure limits for your needs.

Whether you need a TPMS for your passenger vehicle or even a fleet of trucks, GUTA has reliable solutions. You can get our solar powered series for easy-to-recharge monitors. The long range and multi-tire monitoring series will suit commercial vehicles. 

Conclusion

In this article, we have discussed internal and external TPMS types. While the internal ones are better protected, the external types may offer additional features such as temperature monitoring. 

Also, these devices are easier to repair or replace. As a result, it’s easier to maintain than internal TPMS. External TPMS is cost-saving and more reliable, especially when it is used for a fleet of vehicles. 

Considering a TPMS for your vehicle? Remember to shop on GUTA. We have various products to fill your exact needs. Also, we offer afterservice support: guta@afterservice.vip. Let’s help improve your driving safety. 

FAQ

What is the main difference between internal and external TPMS?

Internal TPMS sensors are installed inside the tire on the wheel rim, while external TPMS sensors screw onto the valve stem from the outside. 

Can I install an external TPMS myself?

Yes! External TPMS systems are designed for simple DIY installation. You just screw the sensors onto the valve stems and connect them to the display unit or app. No tire removal or special tools needed.

Do TPMS sensors work on all vehicles?

Most external TPMS systems are compatible with any vehicle that uses standard Schrader valve stems. This may include cars, SUVs, RVs, trailers, and even motorcycles. Internal systems may be vehicle-specific or need some programming.

Will a TPMS warn me before a blowout?

Yes. A good TPMS alerts you if tire pressure drops too low or gets too high. Both conditions can lead to blowouts. Systems like GUTA also detect rising tire temperature, giving you an early warning before any serious damage happens.

Can I inflate my tires with external TPMS sensors installed?

The GUTA GT80 TPMS uses flow-thru sensors that allow you to inflate the tire without removal. On other models, you may need to remove external sensors before inflating. However, this step takes just a few seconds and is only a little sacrifice for the added safety.