750/750B A/C Digital Sound Level Meter — Professional 30~130dB Decibel Sonometer Noise Tester

High-precision measurement with a capacitive microphone: measures from 30~130dB with a noise accuracy of ± 2.0d to reliably capture ambient sound levels. Time-weighting is selectable between fast and slow modes — fast mode reaches 125ms per second while slow mode reaches 1000ms per second for different response requirements. MAX value auto-locks after measurement and can be cleared with a short press for quick resets. An external sponge ball protective cover shields the microphone and helps maintain accurate readings within a certain wind speed range. Ergonomically finished with soft rubber on both sides for a comfortable grip. Suitable for a wide range of applications including offices, libraries, car noise checks, program shooting, factory equipment monitoring and Precision Measurement.