Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Output Signal	4-20mA Analog Current Loop
Measurement Range	30dB to 130dB
Frequency Weighting	A-Weighting (dBA)
Response Time	Fast/Slow Selectable
Operating Voltage	12V DC to 24V DC
Accuracy	±1.5dB at reference conditions
Microphone Type	Pre-polarized Condenser
Protection Rating	IP54 Dust and Splash Resistant
Operating Temperature	-10°C to +50°C
Mounting Style	DIN Rail or Wall Mount Bracket

6 reviews

Anonymous

Mar 31, 2026

Rating: 5/5

Excellent value for money

Compared to handheld decibel meters, this module offers continuous monitoring at a fraction of the cost per point. It has helped us identify peak noise times effectively.

Anonymous

Mar 24, 2026

Rating: 5/5

Perfect for factory monitoring

We installed these modules across our assembly line to monitor noise levels continuously. The 4-20mA output integrates seamlessly with our existing PLC system. Calibration was straightforward, and the readings are consistent.

Anonymous

Mar 24, 2026

Rating: 4/5

Solid industrial sensor

Good build quality and reliable performance in a dusty environment. The only reason for 4 stars is that the manual could be more detailed regarding wiring diagrams for specific controller brands.

Anonymous

Mar 12, 2026

Rating: 5/5

Easy integration

Our engineering team had this up and running within an hour. The current loop output is very robust against electrical interference in our heavy machinery room.

Anonymous

Mar 10, 2026

Rating: 5/5

Reliable and stable

Been running this sensor for three months now without any drift in values. The A-weighting filter works exactly as expected for occupational health compliance checks.

Anonymous

Mar 01, 2026

Rating: 3/5

Works well but sensitive to wind

The sensor works great indoors. However, when we tried using it in a semi-outdoor loading dock, wind noise affected the readings significantly. You definitely need a windscreen for outdoor use.

5 FAQ

Q: What is the maximum cable length for the 4-20mA output?

A: For a 24V supply, you can typically run the signal up to 500 meters depending on wire gauge and load resistance, thanks to the nature of current loop signals.

Q: Can this be powered by a 24V supply directly?

A: Yes, the sensor operates on a wide voltage range of 12V DC to 24V DC. It can be connected directly to standard industrial power supplies.

Q: How do I mount this on a DIN rail?

A: The unit includes a built-in clip on the back. Simply align the top hook with the rail and press the bottom until it clicks into place. No extra tools are needed.

Q: Does this sensor require external calibration?

A: The module comes pre-calibrated from the factory. However, for strict compliance purposes, we recommend annual verification using a standard sound calibrator.

Q: Is there a digital output option like RS485?

A: This specific model is analog 4-20mA only. We do carry a separate model with RS485 Modbus output if your project requires digital communication.

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