XL2 Sound Level Meter
Minirator MR-PRO / MR2
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Accessories for Measurement Microphones
Precision Calibrator 94/114 dB
The precision calibrator is used to ensure accurate sound level measurements. It generates 94 or 114 dBSPL reference tones @ 1 kHz for calibration of 1/2” measurement microphones. The optional 1/4” adapter is required to fit 1/4” measurement microphones.
NTi Audio #: 600 000 388
1/4” Calibrator Adapter
Adapter to fit 1/4” measurement microphones into the NTi Audio Precision Calibrator.
NTi Audio #: 600 000 391
Weather Protection WP30 for M2230
The WP30 Weather Protection is a professional outdoor weather protection kit for the M2230 microphone. Together they form the M2230-WP outdoor microphone. The corrosion-free polymer housing, wind screen, water-repellent membrane and bird spike provide excellent protection from rain, wind, dust and perching birds. It is dedicated for precise acquisition of environmental noise data in outdoor applications.
NTi Audio #: 600 040 060 (without microphone)
Product Data M2230-WP
MA220 Microphone PreAmplifier
The MA220 is a low noise microphone preamplifier compatible with standardized 1/2" microphone capsules. It includes an electronic datasheet for fast setup and ensuring accurate measurements.
NTi Audio #: 600 040 040
Manufacturer Calibration Certificate
The calibration certificate lists the individual product data with serial number. The calibration and adjustment procedures follow the documentation and traceability requirements of the EN ISO / IEC 17025 standard.
Annual re-calibration of the instrument after the purchase is recommended ensuring accurate measurements.
NTi Audio #: 600 000 018
Sample Manufacturer Calibration Certificates:
XL2 Audio and Acoustic Analyzer
Contact NTi Audio
NTI Americas Inc.
Thomas E. Mintner
+1 503 684 7050
Manual M2230, M2230-WP, M2211, M2215, M4260
Specifications M2230, M2230-WP, M2211, M2215, M4260
Outdoor Microphone Leaflet M2230-WP
Product Data M2010, M2015
Mech. Dimensions M2010, M2015
Full Line Catalog
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