Connected Sound Level Sensor - LoraWan

The WS302 is a sound level sensor with a built-in microphone.

WS302 can not only measure a wide range of noise levels and send different types of sound level values via LoRaWAN® network, but it also supports multiple weighting measurements for different application scenarios.

Combined with our Telemesure.net IoT cloud solution, users can manage all their sensor data, record threshold alerts and receive real-time noise level exceedance alarms via a browser or remote mobile device.

The WS302 can be used in intelligent buildings, such as shared offices, open spaces, canteens, but also in the gathering areas of smart cities or simply for environmental impact measurement in urban construction sites, near schools or hospitals, or in retirement homes.

IoT Data Management Platform :

This device is combined with our cloud-based data supervision solution Telemesure.net. Users can view and manage all their measurement data remotely, and receive real-time alerts or notifications via a browser or cell phone.

Features

• Support of several weighting measures to adapt to different scenarios
  • A-weighting
  • C-weighting
  • fast weighting
• Supports the measurement of different types of values to accurately assess the sound level:
  • actual value,
  • equivalent continuous value
  • maximum value
• Equipped with an LED indicator to signal threshold alarms
• Over 4 years of battery life
• Ultra long range wireless transmission up to 15 km line of sight
• Configuration via mobile app via NFC
• Compatible with LoRaWAN® 868Mhz Class A gateways and standard LoRaWAN® network infrastructure
• Quick and easy management with Telemesure.net IoT Cloud solution

Specifications

• Wireless transmission: LoRaWAN EU 868Mhz technology
• Measurement
  • 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
  • Unit of measurement Actual SPL, Leq, Lmax
• Others
  • Configuration NFC button
  • Button 1 × Power/Reset button
  • LED 1 × Status/Alarm indicator
• Physical characteristics
  • Power supply 2 × 2700 mAh ER14505 Li-SOCl2 Replaceable batteries
  • Battery life (10 min interval)
  • Over 4 years (fast time weighting off)
  • Over 1.5 years (fast time weighting on)
  • Operating temperature -20°C to +60°C
  • Relative humidity ≤95% (non-condensing)
  • Ingress protection IP30
  • Dimensions 68 × 65 × 20.5 mm (2.68 × 2.56 × 0.81 in)
  • Material and colour PC+ABS, white
  • Installation on flat surfaces with screws or sctoch duble face
• Package contents
  • Screws for mounting
  • 3M double-sided pad
  • 2 x Battery ER14505
  • Getting started guide
• Part Number: WS302-868M