Digital sound level meter EJB 8921

analog

EJB 8921 DIGITAL SOUND LEVEL METERS Digital sound level meter gives possibilities to measure level of noise with indication of digital display with analog graph. Auto/Manual ranging gives wide possibilities for indication and data updating. Background noise absorber. Monitor the sound levels from traffic noise, alarm systems and workplace machinery. Auto range : 30-130dB Big LCD : 42x64mm Measurement level range : 6 ranges in 10-dB steps Accuracy : 1,5dB Digital display : 3-1/2 dight LCD Analog output : AC - 0,707vrms; DC - 10mV/dB Measurement frequency range : 31,5Hz - 8KHz Measurement level A weidgting : 30dB-130dB Measurement level C weighting : 35dB-130dB Operational temperature : 0-50°C, 10-90%RH Storage temperature : -20 - +60°C Battery life : 20 hours typical (9V) Dimensions : 80 x 256 x 38mm Main functions Quasi-Analog bar indicator: 1dB display steps, 50dB display range, updated every 50ms. Digital display : 3-1/2 dight LCD, 0,1dB resolution updated 0,5 seconds Measurement lever ranfe features 6 ranges in 10-dB steps : 30-80dB, 40-90dB, 50-100dB, 60-110dB, 70-120 dB, 80-130dB. Background noise absorber mode filters ambient sounds. Record Max/Min & Maximum Hold function. A/C weighting selectionable.