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Specs
Milesight WS302-868M LoRaWAN® Sound Level Sensor
WS302-868M
WS501 is a LoRaWAN® intelligent wall switch for local and remote control of lights and electronics.
It is used widely for wireless control of indoor lights, fans, heaters, appliances, etc.
It adopts the standard size of most international wall switches it can replace traditional wall switches. In the WS50x series, WS501 is a simple switch with one key.
WS501 can be monitored and controlled through the web page or mobile app remotely. Other Milesight sensors can also activate it using Milesight LoRa D2D communication protocol, establishing communication between devices without going through the gateway.
| Wireless Transmission | |
|---|---|
| Technology | LoRaWAN® |
| Frequency |
CN470 / IN865 / RU864 / EU868 / US915 / AU915 / KR920 / 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 |
| Measurements | |
| 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 x Power/Reset Button |
| LED | 1 x Status/Alarm Indicator |
| Physical Characteristics | |
| Power Supply |
2 x 2700 mAh ER14505 Li-SOCl2 Replaceable Batteries |
| Operating Temperature | -20°C to +60°C |
| Relative Humidity | ≤95% (Non-condensing) |
| Ingress Protection | IP30 |
| Dimension |
68 x 65 x 20.5 mm (2.68 x 2.56 x 0.81 in) |
| Material & Color | PC+ABS, White |
| Installation |
On the flat surfaces with screws or 3M tapes |
Features
LoRa WS302 Sound Level Sensor.
This sound level sensor is perfect for use in smart buildings, smart cities, schools, health monitoring and more. Optimize the control and management of noise levels in your environment with Milesight's LoRa WS302 Sound Level Sensor, an innovative and efficient solution that ensures the quality of the acoustic environment and the well-being of people in various applications.
Designed for accurate noise control.
The WS302 offers a measurement range of 30 to 120 dBA, an accuracy of ±3 dB and a resolution of 0.1 dB. It also offers A-weighted, C-weighted and fast-time-weighted measurements, making it suitable for a variety of application scenarios. Available measurement units include SPL Actual, Leq and Lmax, giving you complete information about the acoustic environment.
A and C weighting can be adjusted as required.
The Milesight WS302 sensor allows you to choose between A-weighting and C-weighting depending on your needs and the environment you are in. Generally, A-weighting is used in quiet environments, while C-weighting is used in noisy environments. This allows you to easily customize the sensor for accurate and reliable noise measurements in different scenarios, ensuring the best acoustic monitoring solution for your specific situation.
Fast Time Weighting.
Fast time weighting uses a time constant of 125 milliseconds to measure unstable noise with large fluctuations. This feature allows you to accurately capture rapid changes in noise levels, providing more representative measurements in dynamic situations. By default, fast time weighting is disabled to conserve battery life. Please note that enabling this feature will reduce battery life. However, the ability to monitor and analyze rapid noise changes may be essential in certain applications and environments.
More sound levels for more insight
Milesight's WS302 sensor supports the reporting of three sound level values (maximum sound level, sound pressure level and equivalent continuous sound level) based on different weighting methods. This capability provides a more complete and accurate view of the acoustic environment, enabling detailed analysis and better decision making based on the measurements. With these three sound level values available, the WS302 offers a complete solution for understanding and effectively managing noise in different environments and situations, providing valuable information for acoustic quality control and human well-being.
Slim as ever
Its small size and refined shape allow for easy and harmonious integration into any environment, without compromising aesthetics or attracting unnecessary attention. The sensor operates within a temperature range of -20°C to +60°C and withstands relative humidity up to 95% (non-condensing). With an IP30 rating, the WS302 is suitable for indoor use. It measures 68 x 65 x 20.5 mm (2.68 x 2.56 x 0.81 in.) and is made of PC+ABS material in white.
Areas of Application:
An immediate application would be in libraries, a place where noise is not welcome.
In hospitals, it can serve a dual function, keeping the rest of the sick quiet while acting as an alarm if something serious happens.
In schools, it can help maintain a pleasant learning environment.
If your hotel has a no noise policy, you already have a way to keep your guests in line.
Keep your noisiest employees at bay by creating an environment that increases employee productivity by installing it in your offices.
LoRaWAN®
The Milesight Sound Level Sensor is compatible with industry-standard LoRaWAN® gateways, offering a range of up to 15 km in rural areas and 2 km in urban areas. This capability ensures wide coverage and reliable communication in a variety of environments, enabling effective noise monitoring and management over long distances. Using LoRaWAN® technology, the Milesight WS302 sensor provides a scalable, low-power noise monitoring solution ideal for smart city projects, buildings, schools and health-related applications.
Low power consumption
The Milesight WS302 sensor has physical characteristics that ensure long and reliable operation. It is powered by 2 replaceable 2700 mAh ER14505 Li-SOCl2 batteries, providing a lifetime of over 4 years with 10 minute intervals and fast time weighting disabled, and over 1.5 years with fast time weighting enabled.
With a focus on 5G, AI, IoT and LoRaWAN, Milesight is a fast-growing and innovation-driven technology company. With advanced IoT insights, the company is committed to driving the next level of technology innovation and business efficiency in an actionable and locally customized manner.Milesight offers a comprehensive product line ranging from multi-megapixel network cameras and NVRs to video management software, meeting various video surveillance needs from entry-level to high-end. Click to browse the Milesight product line.
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