RION NC-75 Sound Calibrator (94 dB)

Sound pressure level: 94 dB

Tolerance for sound pressure level: Maximum ± 0.20 dB

Frequency as specified: 1000 Hz

Frequency tolerance: Maximum ±0.1%

THD + noise: Maximum 1.0% (22.4 Hz to 22.4 kHz)

Dimensions and weight: Approximately 42 mm (H) x 77 mm (W) x 70 mm (D), approximately 200 g

Power source: Alkaline batteries IEC IEC6 (size AA) x 2; Rechargeable nickel-hydride batteries according to IEC LR6 standard (size AA) (supports "eneloop pro") x 2

Battery life: 50 hours or more (using two alkaline batteries, continuous use). 50 hours or more (using two rechargeable nickel-hydride batteries [eneloop pro], continuous use)

Included accessories: Soft carrying case x 1, 1/2 inch microphone adapter x 1, LR6 alkaline batteries (size AA) x 2, wrist strap x 1, JCSS, Certificate of Calibration x 1.