Lutron SL-4001 Sound Level Meter Sound level meter * Frequency & time weighting meet IEC 61672 class 2. * A, C weighting, Max. hold, Data hold, fast/ slow time weighting, AC/ DC output. * Range : 3 ranges, 30 to 130 dB. * Size : .
Product Specifications Display : 18mm ( LCD ( Liquid Crystal Display) , 3 1/ 2 digits. Measurement : 3 ranges, 30 to 130 dB, input signal only. Operating temperature : 0 to to Operating Humidity : Less than 80% RH Power Consumption : Approx. DC 6mA. Weight : 280 g/ 0.62 LB ( including battery) . Dimension : ( 8.1 x 3.2 x 1.4 inch) . Resolution : 0.1 dB. Accuracy Frequency weighting meet IEC 651 type 2, calibrating input signal on 94 dB( 31.5 Hz to 8 kHz) , then the accuracy of A weighting is specified as following: 31.5 Hz - 3 dB, 63 Hz - 2 dB, 125 Hz - 1.5 dB 250 Hz - 1.5 dB, 500 Hz - 1.5 dB, 1 kHz - 1.5 dB 2 kHz - 2 dB, 4 kHz - 3 dB, 8 kHz - 5 dB Accessories Included Instruction Manual 1 PC. Calibration screw PC. Optional Accessories 94 dB Sound Calibrator, Model : SC-dB/ 114 dB Sound Calibrator, Model : SC-942. Hard carrying case, Model : CA-Info