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Compact Ceramic Piezoresistive OEM Pressure Transmitter

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Compact Ceramic Piezoresistive OEM Pressure Transmitter

IP Rating : IP65 standard; IP67 optional

Operating Temperature : -25°C to +85°C (media); -25°C to +125°C with remote electronics

MOQ : 10 Sets (samples: 1 Set)

Measurement Range : 0~1 bar to 0~600 bar (gauge, absolute, sealed gauge)

Supply Ability : 5,000 Sets/Month

Price : Negotiable (volume discounts available)

Output Signal : 4-20mA / 0-10V / 0.5-4.5V ratiometric / I²C digital

Sensor Element : Al₂O₃ 96% ceramic thick-film piezoresistive

OEM Services : Custom branding, custom output curves, custom connector, private label

Housing Material : 304 Stainless Steel / PPS engineered plastic

Brand Name : QINWEIYB

Payment Terms : T/T,L/C,Western Union

Accuracy : 1%FS standard; 0.5%FS optional

Certification : CE, RoHS, ISO9001

Process Connection : G1/4 (standard), G1/8, 1/4 NPT, M10x1, M12x1.5, custom OEM fittings

Model Number : QWP-1088C

Delivery Time : 3-7 working days

Packaging Details : Bulk packaging in anti-static trays / individual cartons / custom OEM packaging

Place of Origin : China

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Are High Sensor Costs Limiting Your Product Competitiveness?
  • Sensor cost eroding margins - at 1,000+ units/year, $80-150 industrial transmitters represent 5-15% of product BoM cost. Unsustainable at volume.
  • Supplier MOQs blocking NPI - major manufacturers demand 500-1,000 unit MOQs while your new product needs 20-50 units for prototyping and pilot runs.
  • No OEM customization available - catalog suppliers only sell standard configurations with their branding. You need custom ranges, connectors, and your logo.
Operating Environment Analysis
Industries ServedHydrogen energy (fuel cells, electrolyzers), HVAC & heat pumps, water pumps, pneumatic automation, industrial IoT, medical devices, agricultural machinery, refrigeration, compressors
Measured MediaHydrogen gas, compressed air, nitrogen, refrigerants (R32, R290, CO2), water/glycol, hydraulic oil, diesel, clean non-corrosive fluids
Temperature RangeMedia: -25°C to +85°C standard; -25°C to +125°C with remote electronics
Pressure Range0-1 bar to 0-600 bar; gauge, absolute, sealed gauge; custom calibrated ranges
CorrosivityAl2O3 ceramic is chemically inert; compatible with most clean fluids; not for HF acid or strong hot alkalis
ViscosityLow viscosity clean fluids; compact G1/4 port for gases and thin liquids; flush-diaphragm variant for viscous media
Installation ConditionsCompact design for equipment enclosure integration; IP65 standard; -25°C to +85°C operating range
Why Traditional Solutions Fall Short
Full-Size Industrial Transmitters2-5x larger and heavier; 3-8x more expensive; designed for pipe-mount installation, not embedded OEM integration.
Bare MEMS / Piezoresistive DieRequire your own signal conditioning, calibration, and packaging - 6-12 months engineering and $30K-50K NRE before producible.
Unbranded Low-End Ceramic TransmittersInconsistent batch quality; poor temperature compensation (3-5% error); no technical support or warranty for volume OEM.
QWP-1088C: Compact Ceramic OEM Pressure Transmitter for Volume Integration

The QWP-1088C is a cost-optimized ceramic pressure transmitter for high-volume OEM integration. Using Al2O3 ceramic thick-film piezoresistive technology in a compact 25mm x 60mm form factor. Available with 4-20mA, 0-10V, 0.5-4.5V ratiometric, or I2C digital output. Full OEM customization: private labeling, custom ranges and connectors. Start at 10 units for prototyping, scale to 5,000+/month.

Core Capabilities:

  • Cost-optimized for volume - OEM pricing enables precision sensing where not previously economical
  • Compact 25mm x 60mm - fits inside equipment enclosures where full-size transmitters cannot go
  • Al2O3 ceramic sensor - no oil fill, no isolation diaphragm, no leakage risk - simpler, more reliable
  • Multiple outputs - 4-20mA, 0-10V, 0.5-4.5V ratiometric (battery IoT), I2C digital
Technical Advantages
Al2O3 Ceramic Thick-Film SensorMonolithic ceramic diaphragm with printed thick-film strain gauge. No bonding adhesives, no oil fill - eliminating the three most common failure modes of conventional sensors.
Digital Temperature CompensationFactory-programmed coefficients correct span and zero across -25°C to +85°C for stable 1%FS total error band.
Compact Single-Body HousingOne-piece 304 SS or PPS housing. Fewer sealing surfaces = fewer leak paths. G1/4 O-ring seal reliable across millions of cycles.
Low Power & EMC ProtectedUnder 4mA in 4-20mA mode; under 1mA ratiometric for battery IoT. Built-in EMI/RFI filtering and surge protection.
Drop-In OEM Integration

The QWP-1088C is designed for direct integration into your equipment during assembly:

Step 1 - MountThread G1/4 into equipment port with O-ring seal. Torque 20-25 Nm. Only 30mm clearance needed.
Step 2 - Connect2-wire or 3-wire to control board. For I2C: SDA/SCL/VCC/GND to microcontroller with 4.7k pull-ups.
Step 3 - VerifyPower on, verify zero at atmospheric. Factory-calibrated - no field calibration needed.
Step 4 - Integrate FirmwareApply factory-supplied transfer function in your code. Calibration data on unit label.
Real-World Application Case
Case: Hydrogen Fuel Cell System Pressure Monitoring
IndustryHydrogen Energy / Fuel Cell Systems
Measured MediaHydrogen gas (99.97% purity) and compressed air
Temperature-20°C to +70°C
Pressure0-30 bar (H2 supply); 0-3 bar (air); 0-5 bar (coolant)
Installation EnvironmentIntegrated inside fuel cell enclosure, IP54, vibration from cooling fans
Customer Problem12 sensors per system at $80-120 each = $960-1,440 sensor cost (12% of target BoM). Standard transmitters too large for compact enclosure.
Solution12 QWP-1088C with 0.5-4.5V ratiometric output, 304 SS housing, H2-compatible EPDM seals. Custom calibrated ranges. Fit existing enclosure.
Installation LocationG1/4 ports integrated into fuel cell manifold block during factory assembly
ResultSensor cost reduced 62%. Zero failures in 18-month/50-system field trial. $720 per-system BoM reduction improved margin 8 percentage points.
Frequently Asked Questions
Q1: Ceramic vs silicon - which for OEM?
Ceramic (Al2O3): superior chemical compatibility, no oil fill, 3x over-pressure rating. Slightly lower accuracy (1% vs 0.25%FS). Best cost-performance for 80% of OEM applications.
Q2: MOQ for custom configurations?
Flexible: 10 units for prototyping, production from 100 units. Custom ranges and connectors typically no NRE for 500+ annual volume.
Q3: Private labeling available?
Yes. Laser-etched labels with your logo and part number. Custom cable assemblies. Minimum 100 units for private label.
Q4: Lead time for volume orders?
Samples (1-50): 3-7 working days. Volume (100-5,000): 2-5 weeks. Buffer stock for popular ranges. Annual supply agreements available.
Q5: Technical support for integration?
Included. 3D CAD models, electrical specs, sample code for I2C (C/Python), application notes for mounting and EMC best practices.
Ready to Upgrade Your Pressure Measurement?

Tell us your application, target volume, and pressure range. Tailored OEM quote with volume pricing within 24 hours. Samples ship immediately.

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Free technical consultation | Custom configuration | OEM & bulk orders welcome


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