WS302
The WS302 gives building and city managers an objective record of noise, measuring 30 to 120 dBA (or 35 to 120 dBC) with ±3 dB accuracy and reporting actual, equivalent-continuous (Leq) and maximum levels over LoRaWAN. A and C weighting are switchable in software, an LED flags when a configurable threshold is exceeded, and set-up is done by NFC. The compact unit fixes to any flat surface with screws or tape and runs around five years on two replaceable AA-size lithium cells (about 1.7 years with fast time weighting enabled). Typical applications include noise complaints in offices and libraries, classroom monitoring and hospitality or short-let properties.
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