Milesight IoT Sound Level Sensor, WS302-868M LoRaWAN - 211706

2 * 2700 mAh ER14505Li-SOCl2 ReplaceableBatteries NFC Enabled IP30 Rated MeasuringRange: 30 dBA~ 120 dBA, 35 dBC~ 120 dBC MeasurementUnit: SPL Actual,Lea, Lmax FrequencyWeighting: A and C Weighting(SoftwareSwitchable) TimeWeighting: Fast Weighting