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 After the film is used

After the film is used for a long time

12 HOURS LONG STANDBY TIME Fully charges in 1

Solve the problem of slip resistance

1 inches in length by 2

Transducer adapter Wire block to 12pin sounder Manufacturing number 010-11613-10

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 After the film is usedTestHelper 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