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SNDWAY SW-523 Digital Sound Level Meter Decibel Monitoring Tester Amount Measuring Instrument Optical Noise Audio Detector

MULO Mini Alarm Siren Wireless 433MHz Sound & Light Indoor strobe siren High Decibel Horn Siren For Home Security Alarm System

30~130dB A- Weighted Digital Noise Meter Sound Level Meter Handheld DB Meter Audio Measuring Instrument Decibel Monitor

Powered Strobe Sound Flash Waterproof Wireless Outdoor Solar Siren Alarm Siren for 433MHz Wifi GSM Alarm System

2PIN Water leak sensor cable White water sensor cable Smart home 4mm leak detector tape

UT353 Noise Measuring Instrument db Meter 30~130dB Mini Audio Sound Level Meter Decibel Monitor

E06A High-performance Decibel Meter Sound Level Meter Decibel Monitoring Module Easy Assemble TTL5V/RS485 5V 1.5s/500ms

Sound Level Meter Portable A-Weighted 30dB To 130dB Decibel Meter SL01 Handheld Noise Decibel Monitor Audio Measure Instrument

GM1351 Digital Sound Level Meter Decibel Logger Tester 30-130dB Noise in Decibels LCD Analyzer Tester

XRCLIF Sound Level Meter Digital Handheld DB Meter Sound Monitor Noise Audio Level Meter 30-130dB Decibels Mini Sound Meter