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Home / Sensors / Ceramic Pressure Sensor Water Pressure Air Pressure Oil Pressure Hydraulic Module Resistive Liquid Level Sensor CJ18-20A

Attributes

Brand -
Category Robotics / STEM Teaching Tools / Sensors
Origin -
Model Number CJ18-20A
Sensor Type Ceramic Resistive
Measured Media Water, Air, Oil, Hydraulic Fluid
Operating Pressure Range 0 - 100 Bar (Customizable)
Output Signal Resistive Change
Material High-Purity Ceramic
Thread Size G1/4, G1/2, NPT (Optional)
Operating Temperature -40°C to +135°C
Accuracy Class ±0.5% FS
Application Industrial Automation, HVAC, Fluid Control

6 reviews

A

Anonymous

Mar 20, 2026

Rating: 4/5

Good value for industrial use

We installed these in our water treatment facility. They work well, though the installation manual could be more detailed. Overall satisfied with the performance.

A

Anonymous

Mar 20, 2026

Rating: 4/5

Works as described

Solid sensor for air pressure applications. It took a day to calibrate perfectly with our system, but once set, it has been flawless.

A

Anonymous

Mar 16, 2026

Rating: 5/5

Excellent precision

The resistive output is very stable. We integrated it into our custom control module easily. Great product for the price point.

A

Anonymous

Mar 16, 2026

Rating: 5/5

Perfect for hydraulic testing

This ceramic sensor handled our high-pressure hydraulic tests without any issues. The build quality is solid and the readings are consistent.

A

Anonymous

Mar 08, 2026

Rating: 5/5

Durable and reliable

Been using this for oil pressure monitoring in a harsh environment for three months. No corrosion or drift in values. Highly recommended.

A

Anonymous

Mar 07, 2026

Rating: 5/5

Best ceramic sensor we've tried

We switched from metal sensors to these ceramic ones to avoid corrosion issues. This model has exceeded our expectations in longevity and accuracy.

5 FAQ

Q: What is the maximum temperature this module can withstand continuously?

A: The CJ18-20A is rated for continuous operation up to 135°C. Exposure to temperatures beyond this limit may affect accuracy or damage the sensor.

Q: Is this sensor compatible with corrosive chemicals?

A: The ceramic material offers excellent resistance to many corrosive substances, but we recommend checking the chemical compatibility chart for your specific fluid before installation.

Q: Does this come with a calibration certificate?

A: Standard units include a factory test report. A full ISO-traceable calibration certificate is available as an add-on option at checkout.

Q: Can I get this with an M12 electrical connector?

A: Yes, we offer optional M12 connectors. Please select the appropriate variant from the dropdown menu or contact us directly for a custom order.

Q: What is the lead time for bulk orders of 500 units?

A: For orders of 500 units or more, the typical lead time is 2-3 weeks depending on current stock levels and customization requirements.

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