Decibel Meter, Portable SPL Meter (Sound Pressure Level Meter), Digital Noise Meter, Range 30-130dB(A) db Meter, Noise Volume Measuring Instrument, Sound Monitoring Tester (Battery Included) Gray : Amazon.co.uk: DIY & Tools
Decibel Meter, LONVOX Digital Sound Level Meter with 30 to 130 dBA Measuring Range, Backlit LCD Display, MAX/MIN Noise Measurement, Data Hold, SPL Meter for Classroom, Noisy Neighbor, Office, Factory: Amazon.com: Industrial