Key Features:
Class 1 Accuracy for Reliable Calibration – Designed
to meet the highest accuracy requirements (IEC 942, Class 1) for sound level
measurement calibration.
Dual Calibration Levels: 94 dB & 114 dB – Offers
fixed acoustic outputs of 94 dB and 114 dB at 1000 Hz, enabling quick
verification of sound level meters at two standard reference points.
Standard Frequency Output: 1000 Hz – Calibrates
devices using A, B, C and D weighting filters at the internationally accepted
reference frequency of 1 kHz.
Adapters for Multiple Microphone Sizes – Supplied
with ½-inch adapter (and optional ¼-inch) so you can calibrate a variety of
microphone sizes (1″, ½″, ¼″) for versatile use across instruments.
Compact & Portable Design with Battery Operation
– Powered by standard 1.5 V AA (2×) batteries for field portability and fast
onsite calibration without mains dependency.
High Stability & Low Drift – Extremely low height
and temperature sensitivity (approx. 0.1 dB per 610m altitude, temp coefficient
0-0.01 dB/°C) helps maintain calibration integrity under varying conditions.
Digital Display & Simple Operation – LCD shows
current calibration level and battery status; membrane keypad allows quick
switching between 94 dB and 114 dB.
Ready for Accreditation & Quality Control – With
built-in Class 1 accuracy and fixed calibration levels, it’s well suited for
ISO/IEC compliant calibration routines and documentation.
Weighting Filter Compatibility – Supports A, B, C
& D weighting curves, enabling calibration of sound level meters that use
any of those filters.
