Direct Tire Pressure Monitoring Systems

Direct Tire Pressure Monitoring Systems (TPMS), such as the Doran 360™ series of tire pressure monitors, use pressure sensors located on each wheel's valve stems to directly measure the pressure in each tire. These sensors broadcast pressure data via a wireless radio frequency transmitter to a central receiver. The data is analyzed and the results sent to a display mounted inside the vehicle.

Since a direct tire pressure monitoring system actually measures the pressure in each tire, it is able to detect when any tire or when each tire in any combination is under-inflated, including when all four of the vehicle's tires are equally under-inflated. A direct TPMS can also detect small pressure losses. Some systems can detect a drop in pressure as small as 1 psi.

The Doran 360™ Series Direct Tire Pressure Monitoring System

A Doran 360™ series tire pressure monitoring system is a compact system that delivers powerful results and protection. The Sensors are continually reading pressure and sending signals to the monitor about the air pressure in each tire around the clock. Each tire pressure monitoring system from the Doran tire pressure monitor product line consists of two basic components:

Component 1: Sensor

The Sensors apply internally or on top of valve stems as end caps (1.01"H x 1.11" Diam.) They wirelessly send a signal containing tire pressure data to the portable dashboard monitor.

Component 2: Monitor

This device, about the size of a dollar bill (6.5" W x 3.0" H x .5" D), that receives actual tire pressure data and gives visual and audible signals if pressure is low.

The monitor receives this signal from the sensors and instantly compares the current tire pressure reading with the automatically set pressure level. The Doran tire pressure monitor sensors send a signal to the monitor detecting a 12.5% drop in tire pressure, both a visual and an audible signal are transmitted. If the tire pressure drops to 25% below the automatically set pressure level, the operator will receive a rapid audible 'beeping' sound and a faster visual 'flashing' on the monitor.

Did you know?

• 20% under-inflation can reduce tire life by 30%
• 20% under-inflation can increase tire wear by 25%
• 20% under-inflation can reduce fuel economy by 3%
• 36% of passenger cars have one tire 20% under-inflated
• 85%-90% of tire failures are directly attributable to under-inflation