TST TRUCK SYSTEM TECHNOLOGIES 507 Series TPMS Color Monitor — 3.5" Display, Rechargeable Dash/Window Mount for RVs & Trailers

The TST 507 Series color monitor is a plug-and-play 3.5-inch display that gives real-time tire pressure and temperature alerts for RVs, campers, and trailers (display only).

Designed as the central display for TST 507 TPMS kits and sensors, this compact unit brings clear visual readouts and audible alerts so you can spot a tire issue before it becomes a roadside emergency. Rechargeable and mountable on a dash or window, the monitor pairs quickly with TST sensors and supports multiple vehicles or trailer setups when used with compatible kits.

How will this monitor help me detect tire trouble on a long trip?

The 3.5-inch color screen shows live pressure and temperature for every paired sensor while audible alarms call attention to problems. When a low or high-pressure condition, rapid leak, or excessive heat is detected, the monitor locks onto the problem tire for fast identification.

• Real-time pressure and temperature readouts for each sensor
• Audible and visual alarms for low/high pressure, fast leaks, and high temperature
• Auto-lock highlights the specific tire with an issue
• Compact, easy-to-read color display suitable for day/night driving

Can the TST 507 monitor manage multiple vehicles or a multi-axle trailer?

Yes—when used with the appropriate TST 507 sensors and kits, the monitor supports monitoring of your tow vehicle plus up to four towable vehicles, making it flexible for complex towing setups. It also allows swapping tire positions after rotation so readings remain accurate.

• Expandable to cover trucks and multiple trailers or dollies
• Sensor location reassignment for tire rotation or reconfiguration
• Works only with TST 507-compatible sensors and kits (display sold separately)

What mounting and power options does the display offer for RV use?

The monitor includes a suction-cup mount for windows and a rubber dash mount for stable placement on the dash. It runs on an internal rechargeable battery and ships with a Micro-USB charger, so you can keep it powered between drives.

• 3.5-inch color screen with adjustable mounting choices
• Rechargeable battery with Micro-USB charging cable included
• Lightweight, low-profile housing suited to cramped dash areas

What support and warranty come with the TST 507 monitor?

TST TRUCK SYSTEM TECHNOLOGIES backs its TPMS systems with U.S.-based customer support and a three-year warranty for the complete trailer TPMS kit. Note that this listing is for the display monitor only; sensors and full kits are purchased separately.

• Three-year warranty when part of a complete trailer TPMS system
• USA-based live customer service for setup and troubleshooting
• Trusted by thousands of RV owners for practical tire monitoring

Who is this for: The TST 507 Series color monitor is built for RV and trailer owners who already use or plan to use TST 507 sensors and want a dedicated, easy-to-read display. It’s ideal for long-haul drivers, frequent campers, and anyone towing multiple axles or additional vehicles who needs dependable, real-time tire information without wiring a permanent dash system.