Wide-range noise measurement
Wide-range noise measurement.
WS302 Milesight Sound Level Sensor
Sound Level Sensor
Order codeWS302 In stockOfficial distributor
The WS302 is a Sound Level Sensor. Two ER14505 batteries give up to 5 years of operation with fast weighting disabled, so the sensor runs for years without wiring or frequent maintenance.
- LoRaWANCN470/IN865/RU864/EU868/US915/
- Power~5 years (SF7, fast weighting
- ProtectionIP30
- Operating–20 … +60 °C
- In stockVilnius warehouse · EU
- In stockLondon warehouse · UK
Dispatch and lead time are confirmed in the quote.
- Official distributor
- 17+ years in IoT
- Installation support
Manufacturer warranty24 months
Overview
WS302 overview
Overview
The WS302 is a LoRaWAN sound level sensor with an integrated microphone. It measures a wide range of noise levels and reports several noise values over LoRaWAN, helping teams monitor and manage acoustic comfort.
Accurate Measurement
The WS302 covers 30 to 120 dBA and 35 to 120 dBC with ± 3 dB accuracy and 0.1 dB resolution across a 30 Hz to 8 kHz range. It reports SPL actual, equivalent continuous (Leq) and maximum (Lmax) values.
Flexible Weighting
Software-switchable A and C frequency weighting plus fast time weighting let the sensor suit different scenarios, from general comfort monitoring to peak-noise detection.
Alarms
A built-in LED indicator flags threshold alarms locally, while LoRaWAN delivers data to the platform for trends, reporting and automated triggers.
Power
Two ER14505 batteries give up to 5 years of operation with fast weighting disabled, so the sensor runs for years without wiring or frequent maintenance.
Setup
One-touch NFC configuration through the Milesight ToolBox app makes setup quick. Mount it on flat surfaces with screws or 3M tape.
Key features
A and C frequency weighting
A and C frequency weighting (switchable).
SPL actual
SPL actual, Leq and Lmax values.
LED threshold-alarm indicator
LED threshold-alarm indicator.
One-touch NFC configuration
One-touch NFC configuration.
Battery life up to 5
Battery life up to 5 years.
LoRaWAN and Milesight ecosystem
LoRaWAN and Milesight ecosystem.
Range 30 – 120 dBA
Range 30 – 120 dBA / 35 – 120 dBC.
Technical data
WS302 specifications
| Specifications | |
|---|---|
| Technology | LoRaWAN® |
| Antenna | Internal antenna |
| 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 |
| Specifications | |
| Range | 30 dBA ~ 120 dBA, 35 dBC ~ 120 dBC |
| Accuracy | ± 3 dB (0 ~ +45 °C) |
| Resolution | 0.1 dB |
| Frequency Range | 30 Hz ~ 8 kHz |
| Frequency Weighting | A and C weighting (software switchable) |
| Time Weighting | Fast weighting |
| Measurement Unit | SPL actual, Leq, Lmax |
| Specifications | |
| Button | 1 × power / reset button |
| LED | 1 × status / alarm indicator |
| Power On/Off | Mobile app via NFC or power button |
| Configuration | Mobile app via NFC or downlink |
| Advanced Feature | Threshold alarm |
| Specifications | |
| Power Supply | 2 × 2700 mAh ER14505 Li-SOCl2 replaceable batteries |
| Battery Life | ~5 years (SF7, fast weighting off); ~1.7 years (SF7, fast weighting on) |
| Operating Temperature | −20 °C ~ +60 °C |
| Relative Humidity | ≤ 95% (non-condensing) |
| Ingress Protection | IP30 |
| Material & Colour | PC + ABS, white |
| Weight | 79.1 g (batteries included) |
| Dimensions | 68 × 65 × 20.5 mm |
| Installation | Flat surface via screws or 3M tape |
| Specifications | |
| Regulatory | CE, FCC, Telec |
| Environmental | RoHS |
No specification rows match the filter.
Applications
WS302 applications
Smart Buildings
Offices and shared spaces monitor noise for comfort and productivity. Threshold alarms flag disruptive levels for quick response.
Smart Cities
Streets and public areas track environmental noise for planning and compliance. LoRaWAN gives wide, low-power coverage across the city.
Education
Schools and libraries keep noise within healthy levels for learning. Long battery life keeps every unit running with minimal upkeep.
Healthcare
Hospitals and care homes watch noise to protect rest and recovery. Accurate weighting suits sensitive monitoring environments.
Questions
WS302 questions and answers
How is the WS302 powered?
~5 years (SF7, fast weighting, according to the specification.
What ingress protection does the WS302 have?
IP30, according to the specification.
What is the operating temperature of the WS302?
–20 … +60 °C, according to the specification.
What lorawan does the WS302 provide?
CN470/IN865/RU864/EU868/US915/, according to the specification.
Request a quote
WS302 price and lead time
Tell us the quantity and the delivery country. We reply within one working day with the price, stock at the nearest warehouse and the dispatch date.
European headquarters+370 655 51654[email protected]
United Kingdom branch+44 7425 726932[email protected]
- Company code306755852
- VAT numberLT100017217417
- Official distributor
- 17+ years in IoT
- Installation support
Manufacturer warranty24 months
