Xi'an Qintai's Thin-Film Pressure Transmitter(Model QS-P218) combines advanced sputtering technology with robust industrial design to meet your toughest challenges. With a measuring range from 0 to 4800 bar gauge and accuracy options of 0.5% or 1% BFSL, this transmitter ensures precision across diverse applications.
Our fully welded structure eliminates O-rings, removing any risk of leakage—a critical feature for high-pressure environments. The high overload and burst pressure capabilities make it ideal for automotive, hydraulics, and industrial process control. Built for mass production and backed by CE and UL certifications, this cost-effective solution delivers enterprise-level performance you can trust.
As China's No. 1 market share holder and core supplier to Weichai Power, Yuchai Power, and Quanchai Power, we bring over 20 years of manufacturing excellence to every unit.

The heart of our transmitter is the sputtered thin film sensor element. This technology creates a molecular bond between the sensing element and the steel diaphragm, resulting in exceptional stability and repeatability. Unlike traditional sensor technologies, sputtering ensures long-term drift remains below 0.1% FS per year.
Your operations benefit from ultra-fast response times—typically under 1 millisecond. This rapid data acquisition is essential for dynamic pressure monitoring in mobile hydraulics, fuel injection systems, and process automation.
We understand your equipment operates in challenging conditions. That's why we've designed the QS-P218 with a fully welded construction using 17-4 PH or 316L stainless steel. This design withstands continuous 20g vibrations and 50g mechanical shocks—perfect for construction machinery and off-road vehicles.
The absence of O-rings and organic sealing materials means you can deploy our Thin-Film Pressure Transmitter in applications involving aggressive media. From corrosive chemicals to hydrogen fueling stations operating at 700 bar, the inorganic construction prevents degradation and ensures reliable operation.
Temperature extremes won't compromise your measurements. Our transmitters operate reliably from -40°C to +125°C ambient temperature, with medium temperature capability extending to +150°C (up to 200°C with special design).
| Parameter | Specification |
|---|---|
| Pressure Range | 0~10bar to 4800bar Gauge |
| Output Signal | 0.5~4.5V Ratio, 0~10VDC, 0~5VDC, 4mA~20mA |
| Power Supply | 5VDC, 12~30VDC, 10VDC~30VDC |
| Accuracy | ±0.5% F.S. (±1.0% F.S. optional) |
| Medium Temperature | -40~125℃ |
| Working Temperature | -40~85℃ |
| Long-term Stability | ±0.5%F.S / year |
| Response Time | ≤10ms (10%~90%) |
| Overload Pressure | ≥ 200%F.S |
| Burst Pressure | ≥ 1000%F.S |
| Housing Material | 316L stainless steel |
| Ingress Protection | ≥ IP65 |
We know your systems have specific interface requirements. Our transmitters support multiple output configurations to ensure easy integration:
Analog Outputs:
· 4–20 mA current loop (industry standard)
· 0–5 V or 0–10 V voltage output
Digital Protocols:
· CAN / CANopen / J1939 for automotive and industrial networks
· I²C or SPI for OEM integration and embedded systems
This flexibility allows you to select the exact communication protocol that matches your existing infrastructure, reducing integration time and cost.
Car Industry
Monitor fuel, oil, brake, and pressure driven weight with certainty. Our transmitters meet the thorough requests of advanced vehicles, counting heavy-duty trucks and commercial armadas. The computerized communication choices coordinated consistently with vehicle CAN transport systems.
Mobile Hydrodynamics and Development Machinery
In development hardware, excavators, and fabric handlers, our transmitters track pump release and barrel weight. They keep up precision in spite of steady vibration and mechanical stun that would debase lesser sensors.
Hydrogen Fueling Stations
The completely welded, inorganic development makes our transmitters perfect for high-pressure hydrogen applications up to 700 bar. You dodge the hydrogen embrittlement and saturation issues that torment sensors with natural fixing materials.
Industrial Prepare Control
Whether you're overseeing water treatment, gas dispersion, or chemical handling, exact weight estimation is basic. Our transmitters give dependable information over different media sorts and temperature ranges.
HVAC and Refrigeration Systems
Monitor refrigerant and discuss weight in chillers and climate control frameworks. The chemical compatibility guarantees long benefit life indeed with forceful refrigerants, whereas the wide temperature extend handles freeze-thaw cycles without degradation.
Aerospace and Marine Applications
For pressure driven activation frameworks and natural control in aviation, defense, and marine vessels, our transmitters convey the unwavering quality your safety-critical operations demand.
Independent R&D
Our group of 86 devoted R&D specialists persistently innovates to improve execution and unwavering quality. We've connected for 58 innovation licenses, illustrating our commitment to progressing weight detecting innovation. You advantage from cutting-edge arrangements supported by profound building expertise.
China No. 1 OEM Supplier
Since 2001, we've developed to gotten to be the trusted center provider for China's driving control producers. Our yearly generation capacity surpasses one million urea pumps and two million sensors. This scale guarantees steady quality, competitive estimating, and dependable supply for your operations.
Comprehensive OEM/ODM Services
We accomplice with you from starting plan through mass generation. Whether you require minor adjustments or totally customized arrangements, our designing group works closely with yours to provide items that meet your correct specifications.
Support for Customization
Every application has one of a kind prerequisites. We offer adaptable customization choices for weight ranges, electrical associations, handle associations, yield signals, and lodging materials. Let us know your particular needs, and we'll build a arrangement.
As a national high-tech enterprise, we maintain rigorous quality standards:
· ISO9001– Quality management systems
· IATF16949– Automotive quality standards
· CE, UL– International safety compliance
· RoHS, REACH– Environmental compliance
· CMC, Ex– Chinese quality and explosion-proof certifications
These certifications ensure every transmitter meets international standards for safety, reliability, and environmental responsibility.

We're proud to serve as the core supplier for China's leading engine manufacturers: Weichai Power, Yuchai Power, and Quanchai Power. Our No. 1 market position in China reflects the trust these industry leaders place in our products.
Beyond China, our sensors are deployed globally across automotive, industrial, and aerospace applications. We collaborate with OEM partners worldwide who value precision engineering and reliable supply chains.

We effectively take part in worldwide exchange shows and industry conferences to exhibit our most recent developments. Our worldwide showcase nearness expands over Asia, Europe, and North America, bolstered by a arrange of wholesalers and specialized representatives.
Our group goes to major industry occasions counting mechanical computerization shows, car innovation conferences, and hydrodynamics exchange appears. These engagements keep us associated to advancing showcase needs and developing applications.

With an yearly generation capacity of over two million sensors, we keep up vital stock levels to guarantee quick fulfillment of your orders. Our distribution center administration frameworks track items from fabricating through shipment, giving you with real-time perceivability into arrange status.
We accomplice with driving coordinations suppliers to offer adaptable shipping alternatives custom-made to your plan and budget. Whether you require express conveyance or solidified shipments, we arrange the most proficient arrangement.

Each transmitter gets cautious bundling to guarantee it arrives in culminate condition. We utilize defensive materials planned for the particular delicacy and natural affectability of accuracy sensors.
Our bundling incorporates anti-static security, dampness obstructions, and shock-absorbing materials. Person units are clearly labeled with show numbers and determinations for simple recognizable proof. Solidified orders incorporate nitty gritty pressing records and documentation for traditions clearance.
We dispatch around the world utilizing set up carriers with demonstrated track records for dealing with delicate instrumented.

What makes thin-film innovation prevalent to other weight detecting methods?
Thin-film innovation makes a atomic bond between the sensor component and the stomach through sputtering. This disposes of the float and precariousness common in strain gage sensors with cement holding. You get way better long-term solidness, quicker reaction times, and higher unwavering quality in unforgiving environments.
Can these transmitters handle destructive media?
Absolutely. The completely welded 316L stainless steel development and nonattendance of natural fixing materials make our transmitters consistent with numerous destructive fluids and gasses. For particular media compatibility questions, contact our specialized group with points of interest almost your application.
What weight ranges are available?
We offer measuring ranges from 0–10 bar up to 0–4800 bar gage weight. Custom ranges can be created for specialized applications. Our designing group will offer assistance you select the ideal run for your estimation needs.
How do I select between 4–20 mA and computerized outputs?
If you're coordination with conventional control frameworks and PLCs, the 4–20 mA current circle offers widespread compatibility and straightforward wiring. For car applications or frameworks requiring different sensor information on a single transport, advanced conventions like CAN or J1939 diminish wiring complexity and empower progressed diagnostics.
What's the ordinary lead time for standard models?
Standard setups ordinarily transport inside 2–4 weeks depending on arrange amount and current generation plans. Custom arrangements may require extra lead time for designing and approval. Contact us for particular timing on your project.
Do you give specialized bolster after purchase?
Yes, our after-sales benefit group gives progressing specialized bolster. We help with establishment direction, investigating, and application optimization. Our objective is your victory with our products.
Can I visit your factory?
We welcome client visits to our Xi'an office. Seeing our fabricating forms, quality control methods, and R&D research facilities firsthand makes a difference you get it the capabilities and skill behind our items. Contact us to plan a visit.
What guarantee do you offer?
We stand behind our fabricating quality with comprehensive guarantee scope. Particular terms depend on the application and working conditions. Our deals group will give point by point guarantee data with your citation.
Ready to improve your pressure measurement accuracy and reliability with Thin-Film Pressure Transmitter?
Email us at: info@qt-sensor.com
Our customers’ satisfaction speaks for our quality — contact us to experience the same reliable service.