Sound level meter - digital ADD358

What is for sale: Sound level meter - digital ADD358

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Check out the features! It comes in a foam padded plastic case with compartments for the windscreen foam and a spare battery.
This is the best unit you can get, from ADD Tool. Wide range from 40 - 130dB (40dB quiet talking, 120dB pain threshold).
Fast time weighting for normal sound measurements
Slow time weighting for checking average of fluctuating noise
Frequency weighting A for for normal sound measurments
Frequency weighting C for low frequency content sound measurements
AC and DC level output sockets for analyser level or graphic recorder
Threaded tripod socket on the back
Under and over range indicators
Long battery life of 30 hours (alkaline)
Microphone 12mm electret condenser type
Frequency range 31.5Hz - 8.5kHz
Accuracy ± 1.5dB (reference conditions)
Digital readout resolution 0.1dB
Bargraph 50dB scale at 1dB increments
AC output 0.707Vrms at full scale output
Output impedance approx 600 ohms
DC output impedance approx 100 ohms
Designed to IEC651 type 2 and ANSI S1.4 type 2 standards for sound level meters
Can be calibrated with type 2 meter calibrator