TestHelper SW-525A Sound Level Meter Tester 30-130db Large Screen Red LCD Display Wall Hanging Type Decibel Noise Measuring with Alarm (Sound Level Meter) auspowers_batchone PGN Bearings(100 Pieces) - 3mm

PGN Bearings(100 Pieces) - 3mm (0

12 HOURS LONG STANDBY TIME Fully charges in 1

EASY TO USE Plug & play

2 Inch Disc Pad Holder with ¼” Shank

Socket x Threaded End

TestHelper SW-525A Sound Level Meter Tester 30-130db Large Screen Red LCD Display Wall Hanging Type Decibel Noise Measuring with Alarm (Sound Level Meter) auspowers_batchone PGN Bearings(100 Pieces) - 3mmTestHelper SW 525A Sound Level Meter Tester 30 130db Large Screen Red LCD Display Wall Hanging Type Decibel Noise Measuring with Alarm (Sound Level Meter) Purchase instructions: 1. The product is powered by USB cable, please confirm before purchase, you have USB socket applicable Product has no battery, it uses AC power supply 2. Usually in a very quiet room, the value will not be lower than 40dB, which is normal. Description: Large digital LCD