Extech 407766 94/114dB Sound Calibrator
94/114dB Sound Calibrator

This 1kHz 94/114dB professional sound calibrator is for 0.5 inch. or 1 in. microphones. Calibrates and checks the sound level meter's operation. Level switch for 94dB or 114dB with power on LED indicator light. The die-cast aluminum enclosure produces a 1kHz sine wave at 94dB/114dB with an accuracy of 5% for frequency and ±0.5dB (94dB)/±1.0dB (114dB). Meets IEC 60942 1997-11. Comes with two 9V batteries, a carrying box, and a screwdriver.

Specifications

Frequency 1000Hz
Frequency Basic Accuracy ±5%
Sound Range (dB) 94dB/114dB
Sound Range (dB) Basic Accuracy ±0.5dB (94dB); ±1dB (114dB)
Total Harmonic Distortion (THD) <2%
Certifications CE
Dimensions 2.2" diameter × 5.6" long (50 × 127mm)
Power 2 × 9V batteries
Warranty 2 years
Weight 0.75 lbs. (340g)