Minstruments System Case Store your valuable Minstruments in this compact system case with with adequate extra space for your cables and connectors for those "out in the field" jobs. NTi Audio #: 600 000 020

Calibration Certificate Individual calibration certificate with serial number for the new Minstrument. The calibration certificate needs to be ordered together with the Minstrument. All product testing, calibration and adjustment is carried out according to ISO 9001:2000 regulations. NTi Audio recommends calibration in yearly intervals. Calibrations are carried out at NTi Audio. NTi Audio #: 600 000 018

Precision Calibrator 94/114 dB, Class 1 The precision calibrator ensures accurate sound level measurements. It generates 94 or 114 dBSPL reference tones @ 1 kHz for calibration of 1/2" and 1/4" measurement microphones (compatible to all NTi Audio microphones). NTi Audio #: 600 000 390 Download product data here.