Digital Sound 8930B, Portable Sound Level Calibrator, Battery-powered sound source, Battery life approx. 50 hours, Standard IEC 60942:2018 Class 2, Suitable for all sound level meters with mechanical microphone head according to IEC 61094-1 and 61094-4, Sound pressure level: 94 / 104/ 114 dB at 1 kHz, LED indication for battery level and for sound pressure level, Microphone hole: 13.2 mm, Dimensions (W x H x D): 130 x 60 x 43 mm, Weight: 0.2 kg, Includes 2 AA batteries, Compatible with Digital Sound 8922 (Art.#132900# - not included)
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