Testo 815
sound level meter incl. calibration scewdriver, wind screen
Meas. range +32 to +130 dB
Section meas. ranges: 30 to 80 dB; 50 to 100 dB; 80 to 130 dB
Time weighting: FAST 125 ms setting / SLOW 1 s setting
Used in workplaces, air conditioning