Martindale SPC70 Class 2 Sound Level Calibrator NPT Clear oversize luminous LEDs shine

Clear oversize luminous LEDs shine through voltage level

Buzzer for instant pass indication

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Martindale SPC70 Class 2 Sound Level Calibrator NPT Clear oversize luminous LEDs shineMartindale SPC70 Class 2 Sound Level Calibrator For verifying accuracy of sound level meters Simple to use 1kHz reference at 94dB and 114dB Compatible with a wide range of meters Complies with international standards Description The SPC70 is a Class 2 sound level calibrator suitable for periodic testing of sound level meters and verifying their accuracy before and after readings, in accordance with international standards. The SPC70 is simple to use