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> Sper scientific acoustical calibrator - 2 point 850016
Sper scientific acoustical calibrator - 2 point 850016
For calibration of all Sper Scientific digital sound meters or any sound level meter with 1 or microphone. Conforms to ANSI S1.4-1984 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, it comes with a carrying case, adaptors for 1/2 and 1 microphones, instructions and a 9 volt battery. Dim: 5 x 1 (125 x 48mm). Weight: 10 oz (285g). Works with the following sound meters: Mini Sound Meter 850014 Graphic Display Sound Meter 840028 Digital Type 2 Sound Meter 840029 Detachable Probe Sound Meter 840012 Sound Level Pen 840018 Type 1 Sound Meter 840015 Datalogging Sound Meter 840013
