Milesight WS302 Sound Level Sensor
Authorised Milesight UK Distributor£41.90 ex VAT (£50.28 inc. VAT)
WS302 is a LoRaWAN sound level sensor with an integrated microphone for indoor noise monitoring. It measures 30 dBA to 120 dBA (35 dBC to 120 dBC) — the decisive spec — to ±3 dB with 0.1 dB resolution across a 30 Hz to 8 kHz band, and reports actual SPL, Leq and Lmax. Two replaceable AA lithium cells give around 5 years.
Sound level measuring range30 dBA to 120 dBA, 35 dBC to 120 dBC
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In stock · typically dispatched within 14 working days from the UK
● Quotes answered within one working day · UK support
Delivery & assurance
- Ships from the UK
- £14.25 flat UK delivery
- Secure checkout — card, Klarna, invoice
- Manufacturer's warranty
Questions about this product? Call our UK team: 023 9223 3611
Description
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 solutio
Additional information
| Weight | 0.079 kg |
|---|
WS302-868M 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 |
| Measuring 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 units | SPL actual, Leq, Lmax |
| Advanced feature | Threshold alarm |
| Configuration | Mobile app via NFC or downlink |
| Power supply | 2 × 2700 mAh ER14505 Li-SOCl2 replaceable batteries |
| Battery life (fast weighting disabled) | Around 5 years (SF7, EU868 & US915); around 3.3 years (SF10, EU868) |
| Battery life (fast weighting enabled) | Around 1.7 years (SF7, EU868 & US915); around 1.5 years (SF10, EU868) |
| 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) |
| Weight | 79.1 g (batteries included) |
| Material & colour | PC+ABS, white |
| Installation | On flat surfaces with screws or 3M tape |
| Approvals | CE, FCC, Telec; RoHS |
Specifications taken from the manufacturer datasheet.
Which version do I need?
-868M is the EU868 band and is the version to order for the UK. The datasheet lists CN470, IN865, RU864, EU868, US915, AU915, KR920 and AS923-1&2&3&4 as available frequencies.
Typical applications for the WS302-868M
- Smart building noise monitoring
- Smart city noise monitoring
- Schools and classrooms
- Health and wellbeing monitoring
- Threshold-alarm noise nuisance monitoring in offices and public spaces
Buying guides for this product
Frequency band
Supplied on EU868, the LoRaWAN band used in the UK and across Europe. That is the default and you do not need to ask for it — the -868M in the part number is the EU868 build.
The same WS302-868M unit also covers IN865 and RU864. Those bands share the 863–870 MHz radio with EU868, so one device can be set to any of them in its own configuration — no different part number needed.
CN470, US915, AU915, KR920 and AS923 are a different radio and therefore a different build. Milesight makes them and we can order them: tell us where the devices are being deployed and we will confirm the part number, price and lead time.
Not sure which band applies where? The Things Network publishes the LoRaWAN frequency plan for every country.
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WS302-868M — frequently asked questions
What noise range can it measure?
30 dBA to 120 dBA and 35 dBC to 120 dBC, with an accuracy of ±3 dB between 0°C and +45°C and a resolution of 0.1 dB. The microphone frequency range is 30 Hz to 8 kHz.
Does it support A and C weighting?
Yes. A and C frequency weighting are software switchable, and fast time weighting is supported.
Which values does it report?
SPL actual, Leq (equivalent continuous level) and Lmax, so you can log both instantaneous and averaged noise levels.
What battery does it use and how long does it last?
Two 2700 mAh ER14505 Li-SOCl2 replaceable batteries. With fast time weighting disabled the datasheet quotes around 5 years at SF7 on EU868 and around 3.3 years at SF10; with fast time weighting enabled it drops to around 1.7 years at SF7 and around 1.5 years at SF10 (10-minute interval, 25°C).
Can it be installed outdoors?
It is rated IP30, so it is intended for indoor installation. The operating range is -20°C to +60°C at ≤95% relative humidity, non-condensing, and it mounts on flat surfaces with screws or 3M tape.
How much does the Milesight WS302 Sound Level Sensor cost in the UK?
The Milesight WS302 Sound Level Sensor is £41.90 ex VAT from Indiott, a UK distributor. The price is published rather than quote-only, and we invoice with VAT (PSI Technologies Ltd, VAT GB 730 2340 83). UK delivery is a flat £14.25 per order ex VAT, whatever the weight.
What is the lead time and delivery cost for the Milesight WS302 Sound Level Sensor?
The Milesight WS302 Sound Level Sensor is in stock and typically dispatched within 14 working days from the UK. UK delivery is a flat £14.25 per order ex VAT, whatever the weight or how many items you order. We ship to GB and the EU and provide a VAT invoice with every order.
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