Decibel Meter Data Logger Digital Sound Level Meter with Alarm, A/C/Z Weighting dB SPL Meter 30~130dB, 1999 Data Record, Noise Measure Device with Data Hold Backlight for Home, Factory, Classroom

Measurement Range: Covers a range from 30dB to 130dB, allowing for versatile sound intensity measurements. Equipped with a high-precision 1/2-inch microphone for accurate sound measurement.;
Display: Features a 4-digit display with a maximum value of 1999 for clear and accurate readouts. It includes an auto power-off feature with a disable function to conserve battery life.;
Frequency Weighting Options: It provides A, C, and Z frequency weighting options, allowing you to customize the measurement to specific frequency ranges.;
Real-time PC Connection: The device can be connected to a PC in real-time, and it is compatible with Windows 7, 8, 10, and 11-with 64 bits OS. It is capable of recording up to 1999 groups of data.; Adjustable Upper and
Lower Limits: You can set upper and lower limits for sound intensity measurements, and the device will trigger a buzzer and light alarm if these limits are exceeded.