· Sound Adaptor Converts your DMM into a Sound Level Meter · Accuracy: From +/- 1.5dB · Frequency: 31.5Hz to 8Khz · A Frequency Weighting · Sound Meter Range: 30dB ~ 130dB
Specifications
Measurement/Range 30dB to 130dB, 3 ranges Range 1: 30 to 80 dB Range 2: 50 to 100 dB Range 3: 80 to 130 dB Output 1 mV per 1 dB Accuracy (23 ± 5°C) Frequency weighting meet IEC 651 type 2, calibrating input signal on 94 dB(31.5Hz to 8 kHz), then the accuracy of A weighting is specified as following:. 31.5Hz ~ ± 3dB, 63Hz ~ ± 2dB, 125Hz ~ ± 1.5dB, 250Hz ~ ± 1.5dB, 500Hz ~ ± 1.5dB, 1kHz ~ ± 1.5dB, 2kHz ~ ± 2dB, 4kHz ~ ± 3dB, 8kHz ~ ± 5dB Frequency Weighting Network Characteristics of A weighting A weighting: The characteristic is simulated as "Human Ear Listening" response. Frequency 31.5 Hz ~ 8,000 Hz SL-406 Factory Calibration Source B & K (Bruel & Kjaer): Multi-function acoustic calibrator, model: 4226 Microphone Type Electric condenser microphone Microphone Size 0.5" standard size Calibration VR Build in external calibration. VR. Battery DC 9V battery (006P, 6F22) Power Consumption Approx. DC 4mA Operating Temperature 0°C ~ 50°C (32°F to 122°F) Operating Humidity Less than 80% RH Weight 150g/0.33 LB (including battery) Dimension Main Instrument: 107 x 53 x 29mm (4.2 x 2.1 x 1.1 inch) Probe: Dia. 12.7mm x 70mm (Dia. 0.5 inch x 2.76 inch) Accessories Included Operation Manual Optional Calibrator 94dB Sound Calibrator, model: SC-941 94/114 dB Sound Calibrator, model: SC-942
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