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SKU WS302-915M Category

WS302-915M Sound Level Wireless Sensor – Milesight

The WS302 is capable of measuring a broad spectrum of sound levels and transmitting various types of noise data over the LoRaWAN® Network.

Download WS302 Datasheet
Download WS302 User Guide

$166.00 ex GST


Combat disruptive noise

The Milesight WS302, equipped with an inbuilt microphone, is a LoRa-enabled sound level sensor designed to tackle unwanted noise efficiently. This sensor is adept at capturing a vast array of noise intensities, transmitting detailed noise data through the LoRaWAN® Network. It offers flexible weighting options for a variety of use cases. Compatible with both the Milesight LoRaWAN® gateway and the IoT Cloud platform, it enables users to effortlessly control sensor data and automate responses across devices from anywhere, via a web interface or mobile application. The WS302 finds extensive application in intelligent urban development, educational institutions, health monitoring systems, and more.


Effortless Sound Monitoring

The WS302 stands out as a sophisticated noise/sound level sensor within the LoRaWAN® ecosystem, simplifying the monitoring of decibels (dB).

  • Noise Measurement Range: 30 to 120 dBA
  • Precision: ±3 dB; Resolution: 0.1 dB
  • Options for A-Weighting, C-Weighting, and Fast-Time Weighting
  • Reporting Metrics: SPL Actual, Leq, and Lmax


Selecting Weightings Based on Environment

Opt for A-weighting in quieter settings and C-weighting in louder environments, enhancing the sensor’s versatility.


Rapid Response to Noise Fluctuations

With a 125-millisecond time constant, fast-time weighting excels in tracking rapidly changing noise levels, although activating this feature may impact battery longevity.


Comprehensive Noise Analysis

The sensor reports on three critical sound metrics—maximum sound level, sound pressure level, and equivalent continuous sound level—tailored by different weighting methods.


Seamlessly Integrates into Any Setting

With its sleek design, the WS302 is perfectly suited for educational spaces, professional settings, healthcare facilities, and more, serving as an unobtrusive sentinel against noise pollution.


Key Features

  • Supports varied weighting measurements for application-specific accuracy: A weighting, C weighting, and fast weighting
  • Capable of measuring different sound levels for precise monitoring: actual, equivalent continuous, and maximum levels
  • Features an LED indicator for easy threshold alerts
  • Offers over four years of battery life
  • Includes built-in NFC for straightforward setup
  • Compatible with standard LoRaWAN® gateways and network servers
  • Simplified device management via the Milesight IoT Cloud platform


Configuration Made Simple

Activate, deactivate, and configure the sensor with ease using NFC technology from a smartphone or PC.


Please note: For wireless network capabilities, an applicable Gateway is required to utilise the IoT Cloud software as demonstrated below.

Additional information

Weight 0.1 kg
Dimensions 10 × 7.5 × 3.5 cm