Single Point Sound Meter Calibrator, Extech, Mfr#: 407744

Sound Level Calibrator, Output Sound Pressure 94 dB, Frequency Accuracy 5 Percent, Frequency Source 1,000 Hz, Distortion Less Than 2 Percent, Compatible with Brand Extech, Compatible with Manufacturer Model Number 407730, 407730-NIST, 407731-KIT, 407732, 407732-KIT-NIST, 407732-NIST, 407732-NISTL, 407750, 407750-NIST, 407760, 407780A, 407780A-NIST, 407790A, SDL600, SDL600-NIST, SL130W, SL130W-NIST, SL150, SL250W, SL400, SL400-NIST, Output Sound Accuracy +/-0.5dB, Battery Chemistry Alkaline