Check the listing for details. Digital Sound Level Meter. Condition: New – Open box. Listed at 23.00 USD. The decibel gauge has the function of converting the fast and slow response rates. The fast response rate uses a time constant of 0.125s/time for general environmental measurement. The slow response rate uses a 1s/time constant, which is used for environmental measurements with relatively large changes in noise levels. Also, have MAX, data hold, and under/over, dB/SONE unit selection functions. Note: Can not keep and generate a report directly from the device. A weighting model: Simulate the characteristics of human hearing, which is suitable for the detection of ambient noise; C weighting mode: Actual sound level, which is suitable for the sound pressure analysis of machine motors and machines. This uses to measure the sound level of sound equipment in Work and Life: such as factories, workshops, schools, residential, office areas, traffic roads, audio, and other occasions. Also applies to noise engineering, product quality control, health control, and so on.