Chauvin Arnoux P01185301 Sound Level Calibrator, ±0.5 dB Accuracy, 94.0 dB, 114.0 dB Output

The Chauvin Arnoux CA833 is a 1kHz standard source designed to calibrate a sound level meter to 94 and 114dB. It is operated on 9 V battery.

Temperature ranging from -10 to 50°C
Humidity drift -0.1dB / %RH
Total harmonic distortion < 2%