SPER SCIENTIFIC Mini Sound Meters

Small Meter, Big Features and Value

Hand-held Meter comes with a large backlit display, auto power off and hold functions, but is still compact enough to fit in a shirt pocket.
Mini Sound Meters deliver fast or slow time weightings, minimum / maximum readings and A or C decibel frequency weighting scales. Readings are stable and reliable. Covers the 30–130dB(A) range with 0.1dB resolution and accuracy of ±1.5dB (Ref. 94dB@1 KHz). Equipped with windscreen, instructions and 9V battery. Does not have AC output. Calibrate to OSHA standards using the Two-Point Acoustical Calibrator (sold separately). Meters measure 8"H x 2-1/8"W x 1-1/2"D and weigh 6 oz. No. 144102 includes a NIST-traceable certificate of compliance.
Two-Point Acoustical Calibrator works with all Sper Scientific sound meters and any sound meter with 1" or 1/2" microphone. Meter reading adjusts to 94dB or 114dB reading. Operates at a frequency of ±0.5dB. Includes built-in battery check, adaptors for 1" and 1/2" microphones, instructions, 9V battery and carrying case. Measures 5"H by 1-7/8"-dia. Weighs 10 oz.
Compliance: No. 144101 meets IEC651 and ANSI S1.4 Standards. No. 144103 conforms to IEC942 1988 Class 2 and ANSI S1.4-1984 Standards.