Sound Level Meter with Large LCD Screen Wall Mounted Digital Noise Meter Decibel Monitoring Tester Noise Volume Measuring Instrument 30-130dB Measuring Range with Sound Alarm

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About this item 1. Large digital LCD display, clear numerical values, easy to read. 2. It is easy to operate and does not require any settings. It can be used immediately upon star tup. 3. Measurement range is 30 ~ 130dB. With upper and lower limit alarms. 4. The adjustable range of alarm time is 5~120 seconds (factory default of 120 seconds). 5. Alarm sound output function. Buzzing to remind you when the real time measurement is reach to the alarm level, and hold the data for 5s then back to normal mode. Show more