Xi'an Qintai Automotive Emission Technology Co. Ltd. brings you the QS-P224 fuel rail transmitter, a high-precision electromechanical sensing device engineered for superior fuel system management. With over two decades of skill since 2001, we convey precise and strong weight observing for both diesel common rail and gasoline coordinate infusion (GDI) frameworks. Our transmitters empower quick and coordinate estimation of rail weight, permitting your Motor Control Unit (ECU) to optimize pump control, valve timing, and infused fuel weight with microsecond exactness. Versatile for distinctive weight ranges—from 0–200 bar for GDI to 0–1800 bar (up to 2500 bar) for diesel—our arrangement guarantees ideal atomization, fuel economy, and compliance with exacting Euro 6 and EPA Level 4 outflows benchmarks.

As China's No. 1 OEM provider and center accomplice to Weichai Control, Yuchai Control, and Quanchai Control, we get it what industrial-grade unwavering quality implies. Your motors request real-time criticism to anticipate weight swell impacts, lean-burn conditions, and over-pressurization failures.
Our item is outlined to fathom these basic torment focuses. It changes over immediate water powered weight into exact voltage or advanced signals, giving your ECU the "eyes" it needs for closed-loop weight control. Whether you work heavy-duty commercial trucks, high-performance GDI vehicles, or off-road development apparatus, our transmitters keep up calibration solidness in spite of 24/7 operation, strongly vibrations, and extraordinary warm cycling.
We hold ISO9001, IATF16949, CMC, Ex, UL, CE, REACH, and RoHS certifications. With 58 development licenses and 86 devoted R&D specialists, we persistently improve to make strides item execution and unwavering quality.
| Parameter | Specification |
|---|---|
| Model | QS-P224 |
| Pressure Range | -1~0bar; 0~1...2000bar |
| Overload Protection | 150% Full Scale |
| Burst Pressure | 300% Full Scale |
| Output Options | 4-20mA, 1-5V, 0.5~4.5V, 0-5V, 0-10V |
| Power Supply | 5~36VDC, 5VDC |
| Response Time | <5ms |
| Combined Error | 1% FSO, 2% FSO |
| Repeatability | ≤ ±0.2% FSO |
| Long-term Stability | ≤ ±0.2% FS/year |
| Wetted Parts | SS304, SS316L, Hastelloy |
| Pressure Connection | M20×1.5, G1/2, G1/4, NPT1/2 (customizable) |
| Operating Temperature | -20°C to 125°C |
| Temperature Compensation | 0°C to 80°C |
| Electrical Connection | M12x1.5 connector, Packard DIN43650A, Cable |
Heavy-Duty Commercial Transport
In Class 8 trucks and marine diesel engines, our transmitters maintain 99% accuracy despite continuous high-amplitude vibrations and varying fuel qualities. They provide the real-time feedback necessary for fleet fuel efficiency and prevent catastrophic engine failure during long-haul operations.
High-Performance Gasoline Direct Injection (GDI)
Modern automotive engines require rapid fuel pressure adjustments for stratified charge combustion. Our fuel rail transmitter facilitates this, optimizing fuel economy in stop-and-go urban cycles while ensuring compliance with the latest emissions standards.
Off-Road Development & Agriculture
Excavators, tractors, and other off-road apparatus work in dust-heavy, high-thermal-stress situations. Our transmitters provide dependable execution indeed with low-quality or high-sulfur powers, guaranteeing high-torque motor execution at moo RPMs.
Marine Control Systems
In sea applications, upgraded airtight fixing avoids salt-air entrance. This guarantees dependable common rail weight observing for large-scale drive motors, where downtime can lead to disastrous operational and monetary misfortunes.
Autonomous R&D
Our autonomous R&D group of 86 professionals ceaselessly innovates to make strides item execution. We hold 58 innovation licenses and stay at the cutting edge of sensor innovation development.
China No. 1 OEM Supplier
We are the center provider of China's driving motor producers. Our advertise administration reflects our commitment to quality, exactness, and client satisfaction.
OEM/ODM Service
We offer comprehensive OEM and ODM administrations, supporting you from item plan through mass generation. Our adaptable approach guarantees your particular application prerequisites are met.
Support Customization
Every application is special. We bolster adaptable item customization concurring to your particular weight ranges, flag yields, and natural conditions.

We proudly serve as the core supplier to China Weichai Power, Yuchai Power, and Quanchai Power. Our partnerships with leading global engine manufacturers validate our technical expertise and manufacturing quality.

With an annual production capacity exceeding one million urea pumps and two million sensors, we serve customers across Asia, Europe, and North America. Our regular participation in international automotive exhibitions demonstrates our commitment to global market engagement.

Our 420-employee operation includes advanced warehousing facilities designed for just-in-time delivery. We maintain strategic inventory levels to ensure rapid response to your order requirements, minimizing your downtime.

Each transmitter undergoes rigorous quality inspection before secure packaging. We use shock-resistant materials and moisture barriers to ensure your products arrive in perfect condition, regardless of shipping distance or method.

Q: What is the typical weight run of a fuel rail weight transmitter?
A: It depends on your fuel framework sort. For gasoline coordinate infusion (GDI), the normal extend is 0–200 bar. For diesel common rail frameworks, it's 0–1800 bar, with a few applications coming to up to 2500 bar.
Q: How does a item progress fuel economy?
A: By giving microsecond-accurate weight input to your ECU, the transmitter empowers exact closed-loop weight control. This guarantees ideal fuel atomization and combustion proficiency, specifically decreasing fuel consumption.
Q: Can your transmitters withstand cruel off-road environments?
A: Completely. Our transmitters are designed for extraordinary tidy, warm cycling, and high-vibration conditions. They keep up calibration solidness indeed with low-quality fills in inaccessible work sites.
Q: Do you bolster custom weight ranges?
A: Yes. We offer adaptable customization concurring to your particular application needs, from sensor plan to flag yield configuration.
Q: What certifications do your items hold?
A: Our items are certified to ISO9001, IATF16949, CMC, Ex, UL, CE, REACH, and RoHS measures, guaranteeing worldwide compliance and quality confirmation.
Ready to upgrade your fuel system performance with fuel rail transmitter? Reach out to our technical team at info@qt-sensor.com for customized solutions, technical specifications, or partnership opportunities today.
Our customers’ satisfaction speaks for our quality — contact us to experience the same reliable service.