WS302-915M Sound Level Sensor

2 * 2700 mAh ER14505 Li-SOCl2 Replaceable Batteries NFC Enabled. IP30 Rated
Measuring Range:
30 dBA ~ 120 dBA, 35 dBC ~ 120 dBC
Measurement Unit: SPL Actual, Lea, Lmax Frequency Weighting:
A and C Weighting (Software Switchable)
Time Weighting:
Fast Weighting