Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Output Signal | 4-20mA Current Loop |
| Measurement Range | 0 to 500 Pa (Customizable) |
| Supply Voltage | 12V to 36V DC |
| Accuracy Class | ±0.5% FS |
| Operating Temperature | -20°C to +85°C |
| Pressure Medium | Non-corrosive Gases and Air |
| Response Time | < 100ms |
| Connection Type | PCB Terminal Blocks |
| Housing Material | ABS Plastic with IP65 Rating |
| Application | HVAC, Clean Rooms, Wind Tunnel Testing |
Anonymous
Mar 22, 2026
Rating: 5/5
Excellent sensitivity
Captures very slight pressure differences that our old sensors missed. The signal noise is minimal, making data analysis much easier.
Anonymous
Mar 17, 2026
Rating: 5/5
Reliable differential pressure monitoring
We use these in multiple clean room setups. They maintain consistency over long periods and handle the micro-pressure changes very well.
Anonymous
Mar 17, 2026
Rating: 4/5
Good value, minor wiring confusion
The sensor works great once wired correctly. The diagram on the board was slightly small, but the performance in our ventilation test rig is excellent.
Anonymous
Mar 14, 2026
Rating: 5/5
Compact and robust
Despite its small size, this module feels durable. It survived a drop during installation without any loss of calibration. Highly recommend for lab use.
Anonymous
Mar 02, 2026
Rating: 5/5
Perfect for HVAC calibration
This module provided stable readings immediately after installation. The 4-20mA output integrates seamlessly with our existing PLC system. Very satisfied with the precision.
Anonymous
Mar 01, 2026
Rating: 4/5
Solid performance for the price
Does exactly what it says. The response time is fast enough for our data logging needs. Would buy again for future projects.
Q: How do I calibrate the zero point if there is drift?
A: There is a multi-turn trimmer potentiometer labeled 'ZERO' on the PCB. Apply equal pressure to both ports and adjust gently until the output reads 4mA.
Q: What is the thread size for the pressure ports?
A: The pressure ports utilize standard M5 threaded fittings, which are compatible with most common pneumatic tubing adapters.
Q: Is a separate power supply required or does it draw from the loop?
A: This is an active 4-20mA transmitter, so it requires an external DC power supply between 12V and 36V; it is not a 2-wire loop-powered device.
Q: Can this be used with liquids instead of air?
A: No, this specific model is designed strictly for non-corrosive gases and air. Using it with liquids may damage the internal sensing element.
Q: Can this sensor measure negative pressure relative to ambient?
A: Yes, this differential pressure module can measure both positive and negative pressure differentials depending on how the high and low ports are connected.
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