Milesight
The Milesight WS302 Sound Level Sensor is a LoRa sound level sensor with an integrated microphone. The WS302 can not only measure a wide range of noise levels and send various kinds of noise level values via the LoRaWAN® network but also supports multiple weighting measurements for different application scenarios. Compliant with the Milesight LoRaWAN® gateway and Milesight IoT Cloud solution, users can manage all sensor data and trigger other sensors or appliances easily via a webpage or mobile App remotely. WS302 can be widely used in smart buildings, smart cities, schools, & health.
| 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 |
| 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 |
| Operation | |
| 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 |