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. 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 Specifications 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 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 Battery Life* (10 min interval) Over 4 Years (Fast time weighting disabled) Over 1.5 Years (Fast time weighting enabled) 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 Technical Documents Datasheet User Guide LoRa is a registered trademark of Semtech Corporation. LoRaWAN is a trademark of the LoRa Alliance. USB-C is a registered trademark of USB Implementers Forum. MCCI and MCCI Catena are registered trademarks of MCCI Corporation. All other trademarks are the property of their respective owners.
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