Sper Scientific
840012
Detachable Probe Sound Meter
Type 2 sound meter with probe extends to 3 feet.
Features AC output and has A and C decibel frequency weighting scales, fast or slow time weighting, hold, peak hold, and min/max functions. Meets IEC 61672:2013 and ANSI S1.4:2014 frequency and time weighting specifications for a Type 2 sound meter. Covers 30 to 130 dB in both manual and auto-ranging scales with 0.1 dB resolution and an accuracy of ±1.0 dB. Certified in compliance with OSHA using an Acoustical Calibrator 850016. Has a fold-out easel back and tripod screw.
Comes ready to use with a windscreen, calibration tool, instructions and 9V battery in a hard-shell, foam-lined carrying case.
Dimensions: 8" × 2½" × 1" (203 × 64 × 25 mm)
Weight: 13.6 oz (386 g)
*Certification Option
N.I.S.T. traceable Certificate of Calibration available at additional cost (Select option above).
| Range | Resolution | Accuracy |
| 30 to 130 dB | 0.1 dB | ±1.0 dB |
Accuracy
Frequency weighting meets IEC 61672 class 2, calibrating input signal on 94 dB ( 31.5 Hz to 8 KHz)
| 31.5 Hz | ± 3 dB |
| 63 Hz | ± 2.5 dB |
| 125 Hz | ± 2.0 dB |
| 250 Hz | ± 1.9 dB |
| 500 Hz | ± 1.9 dB |
| 1 kHz | ± 1.4 dB |
| 2 kHz | ± 2.6 dB |
| 4 kHz | ± 3.6 dB |
| 8 kHz | ± 5.6 dB |
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