Enables remote sound level readings. This unique sound meter enables remote sound level readings using a detachable probe. Features both RS232 computer interface and AC output. Also has A and C decibel frequency weighting scales, fast or slow time weighting, min/max, hold and peak hold functions. Meets IEC 61672 class 2 and ANSI S1.4 type 2 frequency and time weighting specifications. Covers 30 ~ 130 dB in both Manual and Auto ranging scales with 0.1 dB resolution and an accuracy of ±1 dB. Calibrate in compliance with OSHA using Acoustical Calibrator 850016 or equivalent. 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. N.I.S.T. traceable certificate of calibration available. Dimensions: 8" × 2½" × 1" (203 × 64 × 25 mm) Weight: 13.6 oz (386 g) .