Ashish trading corporation manufacturesoffers a state-of-the-art sound level meter. , model 4001 is one of the model of this sound level meter. Some technical configurations include;the display is made of 18 mm [0.7] lcd, 3-1/2 digits. To meet iec 651 type 2, ffrequency weighting networks are designed to meet iec 651 type 2. The a weighting characteristic is simulated as "human ear listening response. For typical, environmental sound level measurement, always select to a weighting. The c weighting characteristic is near the "flat response. This is suitable ffor checking the noise of machinery [qc check] and knowing the sound pressure level of the tested equipment this sound level meter is used. Some of the constructional features of the sound level meter include;the condenser microphone is of high accuracy for long-term tested equipment, . The lcd display warning indicator is for over and under load, low battery indicator, . The unit has a built-in adjust vr. This sound level meter is , available for easy calibration,. Aan optional 94 db sound calibrator, model sc940, is available. The unit is housed iins strong abs plastic case with small and light weight, 400 gm this unit is housed. The complete unit operatesworks on dc 9 v battery with power consumption of dc 6 ma approximate.
