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For calibration of all Sper Scientific digital sound meters or any sound level meter with 1” or ½” microphone.
Conforms to ANSI S1.40-1984 and IEC942 1988 Class 2 standards for acoustical calibrators. Simply place the calibrator on to the digital sound meter’s microphone, turn on the calibrator, and adjust the decibel meter’s reading to either 94 or 114 dB. Operates at a frequency of 1KHz ±4% and with an accuracy of ±0.5 dB. Built in battery check. Easily portable for field use.
Comes with a carrying case, adaptors for 1/2” and 1” microphones, instructions and a 9 volt battery. Works with the following Sper Scientific class 2 sound meters:
850019 Bluetooth Sound Meter
850018 Sound Recorder/Datalogger
840018 Sound Level Pen
850015 Graphic Display Sound Meter
CD323 Sound Meter Datalogger
850013 Advanced Datalogging Sound Meter
850017 Integrating Sound Datalogger
840029 Digital Type 2 Sound Meter
840012 Detachable Probe Sound Meter
850014 Mini Sound Meter
850069 Environmental Quality Meter With Sound
Dimensions: 5” x 1⅞” (127 x 48 mm) Weight: 8.4 oz (238 g)
