Description
The Extech 407766 1 kHz 94/114 dB Professional Sound Calibrator is for 0.5-inch or 1-inch microphones. It calibrates and verifies the performance of the sound level meter. Level position switch to select 94 dB or 114 dB with LED power indicator light. The rugged die-cast aluminum housing generates a 1 kHz sine wave at 94 dB/114 dB with 5% accuracy (frequency) and ±0.5 dB (94 dB)/±1.0 dB (114 dB). Complies with IEC 60942 1997-11. Includes two 9 V batteries, carrying case, and screwdriver.
Ref. 407766