Anonymous
Apr 14, 2026
Rating: 4/5
Good but needs calibration
Works well after tuning the baseline in the code. Out of the box it was slightly off, but nothing a quick calibration couldn't fix.
Description
Reviews
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Model Number | CJ18-20A |
| Pressure Range | 0-100 PSI |
| Output Signal | 0.5V - 4.5V |
| Supply Voltage | 5V DC |
| Accuracy | ±1% Full Scale |
| Compatible Media | Water, Air, Oil |
| Operating Temperature | -40°C to 125°C |
| Thread Size | G1/4 Inch |
| Sensor Material | Ceramic |
| Protection Rating | IP65 |
Anonymous
Apr 14, 2026
Rating: 4/5
Good but needs calibration
Works well after tuning the baseline in the code. Out of the box it was slightly off, but nothing a quick calibration couldn't fix.
Anonymous
Mar 21, 2026
Rating: 5/5
Perfect for DIY
Easy to interface with Arduino and Raspberry Pi projects. The voltage output is straightforward to read with an ADC.
Anonymous
Mar 11, 2026
Rating: 5/5
Excellent precision
Used this for hydraulic monitoring in a small industrial setup. The readings are stable and consistent. Very happy with the performance.
Anonymous
Mar 09, 2026
Rating: 5/5
Fast shipping
Product arrived well packaged and earlier than expected. The sensor works exactly as described in the listing.
Anonymous
Mar 02, 2026
Rating: 5/5
Solid build quality
The ceramic body feels very robust compared to plastic sensors I have used before. It handles vibration well.
Q: Can I use 3.3V logic with this module?
A: The supply voltage should be 5V DC for accurate readings. The output signal may exceed 3.3V logic levels.
Q: What is the thread type on the connection?
A: It uses a standard G1/4 inch thread size. Adapters are available if you need NPT compatibility.
Q: Is the output signal linear?
A: Yes, the output is ratiometric and linear across the specified pressure range.
Q: Is this suitable for fuel pressure monitoring?
A: Yes, the sensor is compatible with oil and fuel media. Please ensure the pressure stays within the 0-100 PSI range.
Q: Does it come with connecting wires?
A: No, this is a module only. You will need to solder or connect your own wires to the terminals.