SKU: SENS-3140
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FirstRate FST100-2010 Noise Sensor, 30dB~120dB, 20Hz~12.5kHz, RS485 Modbus, 9-30VDC

₹8,159.00 (Inclusive of all taxes)
Out of Stock

The FirstRate FST100-2010 is a professional-grade noise sensor module with a 30-120 dB measurement range and RS485 Modbus RTU digital output. It is designed for integration into industrial monitoring systems, environmental noise stations, and building automation networks, operating from a wide 9-30VDC supply.

Features

  • High-precision sound level measurement from 30 dB to 120 dB with ±0.5 dB accuracy.
  • RS485 digital interface with Modbus RTU protocol for robust industrial network integration.
  • Wide operating voltage range (9-30VDC) and temperature tolerance (-20°C to +60°C).
  • Fast response time (≤2 seconds) for real-time noise monitoring and event detection.
  • Wall-mount housing with integrated 1-meter cable for straightforward field installation.

Out of stock

Description

The FST100-2010 noise sensor employs a high-sensitivity microphone and precision signal conditioning circuitry to deliver accurate sound pressure level (SPL) readings across a broad 20Hz to 12.5kHz frequency spectrum. Its digital RS485 output ensures noise data is transmitted reliably over long distances in electrically noisy environments, making it suitable for permanent installation in monitoring networks.

Engineered for continuous outdoor or industrial use, the sensor features a durable, IP-rated enclosure capable of withstanding harsh environmental conditions. The integrated Modbus RTU protocol allows for seamless daisy-chaining with other sensors and easy integration into SCADA, PLC, or central data acquisition systems for comprehensive environmental noise analysis and compliance reporting.

Key Features

  • Professional-grade acoustic sensor with a wide dynamic range (30-120 dB).
  • Digital RS485 output utilizing the standard Modbus RTU communication protocol.
  • Robust construction with a wall-mount shell for permanent outdoor/industrial installation.
  • High measurement accuracy (±0.5 dB) and fast system response time.
  • Wide-range DC power input (9-30VDC) for flexible system power design.
  • Extended operating temperature range from -20°C to +60°C.
  • Integrated 1-meter output cable for direct connection to terminal blocks or controllers.

Applications

  • Urban environmental noise monitoring and compliance stations.
  • Industrial plant and factory perimeter noise level assessment.
  • Construction site noise impact monitoring and management systems.
  • Integration into smart building automation for HVAC and occupancy control.
  • Traffic noise studies and roadside monitoring installations.

Technical Specifications

ModelFST100-2010
Measurement Range30 dB to 120 dB
Frequency Range20 Hz to 12.5 kHz
Accuracy±0.5 dB
Output InterfaceRS485 (Modbus RTU Protocol)
Power Supply9-30 VDC
Response Time≤ 2 seconds
Operating Temperature-20°C to +60°C
ConnectorDirect Out 1m Cable
HousingWall-mount Shell

Frequently Asked Questions

What is the communication protocol and how do I interface with this sensor?

The sensor uses a standard RS485 digital interface with the Modbus RTU protocol. You can connect it to a PLC, industrial gateway, or microcontroller with an RS485 transceiver (like MAX485). Use standard Modbus function codes (e.g., 0x03 Read Holding Registers) to query the measured noise level in dB from its registers.

What is the required power supply and how should I wire it?

The FST100-2010 operates from a wide 9-30 VDC power supply. Typically, you will connect the power (V+, GND) and the RS485 data lines (A, B) according to the provided cable wiring. Ensure proper grounding and use twisted-pair cable for the RS485 lines for optimal noise immunity in long-distance runs.

Is this sensor suitable for outdoor or harsh industrial environments?

Yes, its wall-mount housing and specified operating temperature range of -20°C to +60°C make it suitable for outdoor environmental stations and many industrial settings. For specific ingress protection (IP rating), please consult the manufacturer's datasheet, as the provided information indicates a robust build for field use.

How accurate and fast is the sensor's response?

The sensor boasts an accuracy of ±0.5 dB across its 30-120 dB range and has a fast response time of ≤2 seconds. This makes it suitable for applications requiring real-time monitoring of noise level changes, such as event detection or compliance logging.

Package Includes

  • 1 x FirstRate FST100-2010 Noise Sensor

Additional Information

Weight 0.344 kg
Dimensions 18 × 16 × 8 cm