WORRY LESS—WANDER MORE
WORRY LESS—WANDER MORE
OWN THE JOURNEY FROM THE ROAD UP.
Know what’s happening with every tire, every mile—and have the tools to fix problems on the spot. With best-in-class tire pressure monitoring systems from TST, you’ll have eyes on your tire pressure at all times, so you can catch issues before they become blowouts. And when you need to make adjustments, VIAIR portable compressors deliver RV-ready inflation wherever you are. Stop guessing when it comes to tire safety with real-time monitoring and on-demand inflation.
MONITOR FOR PROBLEMS.
FIX THEM ON THE SPOT.
Tire pressure changes and temperature spikes happen while you're driving, often without warning. TST Tire Pressure Monitoring acts like a check engine light for your tires, giving you real-time readings so you can take real-time action. That's where VIAIR comes in, with inflation options that work wherever you are.
Know exactly what's happening under your rig and:
- Confirm tire pressure at any point in time
- Detect pressure loss, the #1 cause of blowouts
- Detect abnormal temperature increases
- Monitor tires in real time while driving
- Prevent blowouts instead of reacting to them
Travel with the confidence that comes from an OEM-validated monitoring system that's trusted by major automotive and RV manufacturers.
Shop NowTST SYSTEMS DELIVER PEACE OF MIND
TST Systems are made for experienced RVers who don’t want to leave their tire monitoring to chance. Crafted to provide peace of mind in real time, TST Systems act as essential safety equipment, always monitoring changes and providing real-time alerts—even in rural areas. And with durable sensors and replaceable batteries, these systems are designed to last years, not be replaced every season.
FIND YOUR PERFECT SYSTEM
Sale
TST Tire Pressure Monitoring System With Internal Sensors
Enjoy greater safety and fuel efficiency with this tire monitoring system, ut...
$584.00
$495.00
Sale
TST Tire Pressure Monitoring System With Flow Thru Sensors
The TST Tire Pressure Monitoring System provides ultimate protection and peac...
$432.00
$368.00
Sale
TST Tire Pressure Monitoring System With Cap Sensors
The TST Tire Pressure Monitoring System ensures optimal tire pressure for imp...
$333.00
$284.00
Sale
TST 507 Series RV Cap Sensors (4 Pack)
Easy to install cap sensors to monitor for tire leaks, moisture, and tempera...
$248.00
$211.00
Sale
TST 507 Series RV Cap Sensors (2 Pack)
Easy-to-install 2 pack of high sensitivity pressure sensors that are compatib...
$124.00
$106.00
Sale
TST 507 Series Gen 2 Flow Thru Sensors (2 Pack)
Easily monitor the performance and safety of your vehicle, including accurate...
$124.00
$106.00
Sale
Sale
TST 507 Series Gen 2 Flow Thru Sensor
This easily-programmed sensor features a flow-through design which lends impr...
$69.00
$62.00
Sale
TST 507 Series RV Cap Sensor
Easily replace one of your tire pressure sensors with this single RV cap sens...
$69.99
$62.00
Sale
TST SYSTEMS
COMPETITORS
Real-time pressure & temperature on a dedicated display, always visible
Standalone monitor — no phone, app, or Bluetooth required
OEM-approved; factory-installed by major RV and automotive manufacturers
Sensors are designed with replaceable batteries, so the entire unit doesn’t have to be replaced
Continuous protection across all tires, 24/7, driving or parked
VIAIR COMPRESSORS DELIVER SELF-RELIANCE
VIAIR portable air compressors are built for RVers who refuse to be stranded by a tire problem. Engineered specifically for the demands of RV tires—high pressures, large volumes, hard-to-reach positions—VIAIR systems give you professional-grade inflation power wherever you park. With RV-length hoses, automatic shut-off features, and heavy-duty motors built for repeated use, these aren't gas station toys. They're the inflation solution serious travelers keep in their bay because hoping for a working air pump isn't a plan.
FIND YOUR PERFECT SYSTEM
VIAIR 450P-RV Enhanced Flow Automatic Portable Compressor
The 450P-RV EF is an updated version of our popular 450P RV. It features VIA...
$482.95
VIAIR 400P-RV Enhanced Flow Automatic Portable Compressor
The 400P-RV EF is an updated version of our popular 400P RV. It features VIA...
$414.75
VIAIR 400P-RVS Portable Compressor Kit
VIAIR 400P-RVS Automatic Portable Compressor Kit (12v, 150 PSI, For Class C R...
$398.95
VIAIR 300P-RVS Portable Compressor Kit
Powerful Compact 12V Portable Tire Inflator, RV Safe, 150PSI, for Trailers, ...
$229.95
VIAIR 89P Portable Tire Inflator (89P-RVS)
Compact 12V Portable Tire Inflator, RV Safe, 120PSI, for Class B RV's and Sma...
$107.25
VIAIR EVC Ultra Portable Rechargeable Air Compressor
Introducing VIAIR’s Every Vehicle Carry (EVC) Rechargeable Inflator (P/N EVC2...
$80.95
VIAIR RV Winterization Kit
Adapt VIAR Compressor to Blow out Water Lines for Easy Winterization
$58.75
VIAIR 30' Extension Coil Hose
30' Braided Black Coil Hose, Deluxe Carry Bag, Close Ended 1/4" Quick Connect...
$52.50
VIAIR 30' Replacement Air Hose
A dependable solution for contractors needing to replace their air hoses.
$49.95
VIAIR 7-Way Power Access Connector
SAE plug to connect to your VIAIR compressor's power cord to your trailer hitch.
$43.75
VIAIR COMPRESSORS
COMPETITORS
Inflate anywhere, anytime—no hunting for gas stations or hoping their compressor works
Extended hoses (up to 60ft total), 150 PSI capacity, designed to reach all tires on large rigs
Inflate a 275/80/22.5 tire from 80 to 90 PSI in under 3 minutes with automatic shut-off
One-time investment pays for itself after a few uses; no more feeding quarters into broken machines
FAQs
All three sensor types do the same job—same safety, same alerts, same performance, same price. If you’re unsure which one to pick, cap sensors are the safest because they’re easiest to install and work on both rubber and metal valve stems. Flow-thru sensors are great if you adjust your tire pressure often. Internal sensors are best for set-it-and-forget-it accuracy.
It depends on your tire size and pressure requirements. For most travel trailers and Class C RVs with tires up to 35", the 400P-RV handles it easily. For larger Class A rigs with tires up to 42" or tires requiring higher pressures, the 450P-RV is the right choice. Both come with RV-specific accessories like extended hoses and multiple chucks to reach every tire on your rig.
Probably not. Most RVs don’t come with TPMS like passenger vehicles do. If you’re not sure, check with your manufacturer. Don’t assume you’re covered!
VIAIR portable compressors run on 12-volt DC power from your vehicle's battery, not shore power. They connect directly to the battery with alligator clamps or through a 12V outlet. For best performance, run the compressor with your engine on to maintain proper voltage—the compressor needs a constant 13.8 volts for optimal performance.
TST is designed to minimize false alarms with accurate sensors and customizable alert thresholds. Many customers upgrade to TST specifically because their previous, lower quality system had too many false alarms.
No, TST uses a dedicated monitor, not an app on your phone. This ensures your tire monitoring is always on and visible, so it won’t crash, close, or lose connection like a phone app can. Your TST system is a piece of safety equipment, not a smartphone accessory, and should work like a speedometer—always visible.
TST sensors have user-replaceable batteries and seals, and they’re designed for long-term use. You don’t throw away the entire sensor—simply replace the battery and seal, and keep using it.
VIAIR compressors are built for speed. The 400P-RV can inflate a 275/80/22.5 tire from 80 to 90 PSI in under 3 minutes. The 450P-RV is even faster with its 100% duty cycle, meaning it can run continuously without overheating. Compare that to gas station air pumps (if you can find one that works) which often take 10-15 minutes per tire—if they can reach RV pressures at all.