Milesight WS302 LoRaWAN Sound Level Sensor


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  • Free Shipping Total Purchase > RM150
  • Cash Back 1% of Total Purchase
  • 30 Days Return Policy
  • 1 Year Warranty
  • Refund Policy
  • Accurate Sound Level Measurement
  • LED Alarm Indicator
  • 1.5~4 Years Battery Life
  • Easy Configuration (via NFC)
SKU: MYP-MSG-018 Categories: , ,

Milesight WS302 is a LoRa sound level sensor with integrated microphone. WS302 can not only measure a wide range of noise levels and send various kinds of noise level values via LoRaWAN® network, but also supports multiple weighting measurements for different application scenarios. Compliant with Milesight LoRaWAN® gateway and Milesight IoT Cloud solution, users can manage all sensor data and trigger other sensors or appliances easily via webpage or mobile App remotely.

WS302 can be widely used in smart buildings, smart cities, schools, heath monitoring, etc.

Main Features

  • Support multiple weighting measurements to suit different scenes: A weighting, C weighting, fast weighting
  • Support measuring various kinds of values to judge the sound level accurately: actual value, equivalent continuous value and max value
  • Equipped with an LED indicator to indicate threshold alarms
  • More than 4 years battery life
  • Built-in NFC for easy configuration
  • Compliant with standard LoRaWAN® gateways and network servers
  • Quick and easy management with Milesight IoT Cloud solution

Fight Against Uncomfortable Noise

Monitor Sound Level with Ease

WS302 is an advanced LoRaWAN® Sensor for monitoring noise/sound level in decibels (dB) with ease.

  • 30 to 120 dBA Measurement Range
  • ± 3 dB Accuracy; 0.1 dB Resolution
  • A-Weighting, C-Weighting & Fast-Time Weighting
  • Measurement Unit: SPL Actual, Leq, and Lmax


A & C Weighting as Needed

Choose A-weighting or C-weighting based on scenarios. Usually, A-weighting is appropriate for quiet environments while C-weighting is for noisy environments.

Fast-Time Weighting

Fast-time weighting uses a time constant of 125 milliseconds for measuring unstable noise with large fluctuations.

Fast weighting is turned off by default. When turned on, battery life will be shortened.

More Sound Levels for more Insight

Support reporting of three sound level values (maximum sound level, sound pressure level, and equivalent continuous sound level) based on different weighting methods.


Dainty as Always


Blend into any Interiors, Fight Against Uncomfortable Noise

Minimalistic and modern design makes it ideal for classrooms, workplaces, hotels, hospitals, etc. WS302 is an unnoticed guard for eliminating noise pollution.

LoRaWAN® Based

Milesight Sound Level Sensor is compatible with industry-standard LoRaWAN® gateways with a range of up to 15 km in rural areas and 2 km in urban areas.

Long Battery Life


Easy Configuration

Flexible Installation


Wireless Transmission Technology LoRaWAN®
Frequency AS923-1&2&3&4
Tx Power 16 dBm (868 MHz)/22 dBm (915 MHz)/19 dBm (470 MHz)
Sensitivity -137 dBm @300bps
Mode OTAA/ABP Class A
Measurement Range 30 dBA to 120 dBA, 35 dBC to 120 dBC
Accuracy ± 3 dB (0°C to +45°C)
Resolution 0.1 dB
Frequency Range 30 Hz to 8 kHz
Frequency Weighting A and C Weighting (Software Switchable)
Time Weighting Fast Weighting
Measurement Unit SPL Actual, Leq, Lmax
Others Configuration NFC
Button 1 × Power/Reset Button
LED 1 × Status/Alarm Indicator
Physical Characteristics Power Supply 2 × 2700 mAh ER14505 Li-SOCl2 Replaceable Batteries
Operating Temperature -20°C to +60°C
Relative Humidity ≤95% (Non-condensing)
Ingress Protection IP30
Dimension 68 × 65 × 20.5 mm (2.68 × 2.56 × 0.81 in)
Material & Color PC+ABS, White
Installation On the flat surfaces with screws or 3M tapes




Additional information
Weight 0.4 kg
Dimensions 19 × 12 × 6 cm
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