Frequently Asked Questions (FAQs)
Spelling: Tyre or Tire?
As a IRAN-based company, we use the British English spelling “tyre.” However, since we sell our tyre pressure monitoring systems globally, we acknowledge that the American English spelling “tire” is more commonly used internationally. In fact, a Google search shows that “tire” is three times more popular than “tyre.” To accommodate all users, you may notice both spellings used interchangeably throughout our website, product literature, and correspondence. This is intentional and not a spelling error—just a reflection of regional differences.
What environmental conditions can the sensor withstand?
Inside an Off-The-Road (OTR) tire, conditions are extremely harsh. Temperatures can range from as low as -40°C up to +80°C or even higher. To ensure reliable performance across this wide temperature range, our sensors feature carefully engineered packaging designed for robust media compatibility and durability.
Field data indicates that temperatures inside some OTR tires can reach extreme levels of 90 to 95°C. Despite these conditions, our NTMS sensors continue to operate effectively without failure.
Certain OTR tires contain liquid additives such as lubricants and rust inhibitors, which create a chemically aggressive environment that can damage standard electronics. For these cases, we recommend using our specialized liquid-proof NTMS sensors that are designed to withstand such harsh chemical exposure.
How does the sensor interface with the receiver?
The NTMS system includes an operator interface that allows it to function as a standalone unit by displaying real-time tire pressure data and alerts directly. This interface connects to the receiver through the supplied cable harness.
Additionally, some customers integrate the NTMS system into existing platforms—such as track-and-trace, communication, or vehicle telemetry systems—using the NTMS serial data interface for seamless data transfer and monitoring.
What is the purpose of the FAULT output on the receiver’s vehicle interface?
The FAULT output provides a simple on/off signal to control an external relay or buzzer. This feature is especially useful in situations where a detailed display of data is unnecessary, and only a basic “go/no-go” alert is needed for the driver.
The NTMS Manager software configures the FAULT alarm parameters. For more technical details or customization, please contact us via our website.
How are the sensors installed inside the tire?
Our NTMS internal sensors attach directly to the tire’s sidewall using a specialized adhesive patch. In heavy machinery like Earthmovers or OTR vehicles, tire changes do not require removing the entire wheel; instead, the tire is separated from the multi-piece rim for servicing.
Because of this tire assembly method, it is essential that the sensor is installed on the tire itself rather than the wheel. Attaching the sensor to the tire sidewall overcomes the challenges posed by rim construction and tire maintenance procedures.
Can commercial fleet vehicles use this system?
While the NTMS system can theoretically be applied to any tire type, we do not recommend sidewall patch installation on commercial fleet tires. This is due to the high flexing of commercial tire sidewalls, which can compromise sensor adhesion and reliability.
Is the system compatible with tires that have inner tubes?
Internally mounted NTMS sensors are not compatible with tires that use inner tubes. However, our externally mounted NTMS canister sensors can be installed directly on large bore valve stems, providing an effective solution for these applications.
How can I test the installation to optimize NTMS performance?
Most OTR vehicles achieve successful operation with one or two receiver antennas positioned at the front and rear of the vehicle. In some cases, however, radio frequency (RF) testing is necessary to ensure optimal sensor reception and coverage.
We offer guidance and tools to assist with RF testing and installation optimization. Please contact our support team for detailed assistance.
What does it mean that the sensors are delivered in “hibernation” mode?
To conserve battery life during shipping and storage, NTMS sensors are shipped in a low-power “hibernation” state. While in hibernation, the sensor suspends wireless transmissions to minimize energy use but continues to monitor tire pressure internally.
When installed, the sensor automatically “wakes up” upon detecting pressure changes. If needed, placing the sensor in a partial vacuum will reset it back to hibernation mode. In this state, battery consumption is typically less than one-third of the normal operating rate, ensuring a longer shelf life.
