RY-CZS/485 Tube Smart RS485 Digital Output Microphone Outdoor Noise Sensor
RY-CZS/485 Tube Smart RS485 Digital Output Microphone Outdoor Noise Sensor is a smart integrated noise sensor specifically designed for outdoor and industrial applications. Featuring a tubular stainless steel housing, it incorporates a high-sensitivity condenser microphone and digital processing circuitry to accurately detect and calculate environmental decibel levels. This noise sensor offers high protection ratings and easy installation, making it an ideal choice for environmental monitoring and industrial safety applications.
|
Parameter |
Specification |
|---|---|
|
Measuring Range |
30~130dB |
|
Output |
RS485 |
|
Accuracy(23±5℃) |
-1.5db ~1.5db |
|
Frequency Range |
31.5Hz ~ 12.5kHz |
|
Range selection |
30~130dB |
Introduction
This Outdoor Noise Sensor utilizes a standard RS485 (Modbus-RTU) digital interface, allowing users to seamlessly integrate real-time noise data into PLCs, environmental monitoring hosts, or cloud platforms. This enables remote, long-distance, and highly interference-resistant automated noise monitoring.
Details Show
Specifications
| Item | Technical Specification |
|---|---|
| Range | 30-130dB |
| Accuracy | ±3dB@23±5℃,accordance with IEC 61672 standard type 2, calibrated at 94dB(1kHz) input |
| Frequency response | 20Hz-12.5kHz |
| Corrector | B&K 4231 |
| Microphone | Capacitive microphone , size: 0.5 inch |
| Supply | 5VDC,12-24VDC |
| Output | RS485 |
| Power Consumption | <0.5W@12VDC |
| Response Time | <200ms |
| Operating Temperature | -20℃-+80℃@5-80%RH |
| Storage | -40-80℃@20%-90%RH |
| Shell Material | Aluminum alloy |
Features
Probe-Style/Tube Design
Features a tubular housing made of stainless steel or high-density polymer, offering a compact structure that facilitates easy installation via threaded connections or mounting brackets.
Weather Resistance and Compact Design
The housing provides excellent protection against rain and snow, withstanding harsh weather conditions. Its small, lightweight form enables rapid installation in diverse challenging outdoor environments.
High-Precision Digital Output
Incorporates a high-sensitivity condenser microphone and a digital signal processing (DSP) chip with A-weighted (simulating human ear perception) frequency processing, typically achieving measurement accuracy of ±0.5 dB.
RS485 Communication Interface
Utilizes the standard Modbus-RTU protocol. Compared to analog signals (e.g., 4-20mA), digital output offers superior interference resistance, supports multi-point networking, and enables transmission distances exceeding 1000 meters.
Wide-range measurement
Typically covers 30 dB (quiet environments) to 130 dB (industrial high noise), with a broad frequency response span (e.g., 20 Hz to 12.5 kHz).
All-weather monitoring
Typically equipped with an anemometer cup/rain cover to effectively reduce wind noise interference and protect internal sensor components from moisture damage.
Application
Smart Cities and Environmental Monitoring
Installed on streetlight poles or at traffic intersections to monitor urban environmental noise pollution in real time.
Industrial Parks and Factories
Monitor operational noise in workshops, machine rooms, and large equipment (such as air compressors and cooling towers) to prevent noise violations or enable equipment failure early warning.
Construction Sites
Meet environmental protection agencies’ requirements for decibel monitoring at construction sites and trigger alarms when levels exceed standards.
Traffic Monitoring
Deployed near highways, railways, or airports to assess transportation impacts on surrounding residential areas.
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