LUTRON SL 4103 Digital Sound Level Meter[Feb. 7, 2012 1:21:02]
Specification
Separate Sound Probe for Easy Operation.
All same as SL-4010 but with 5 Digit LCD Display. RS-232 and Auto Range.
Digital 3.½ digit LCD display, 18mm size, function dB ( A & C weight) . Fast, slow, Max hold AC/ DC output Measuring Range: 35-130 dB with electric condenser microphone. Frequency 30Hz~ 12Khz. 0.1dB Resolution, Aux output jack.