Alpaca Goes Back-a to School: A Picture Book

Fluke II905 Industrial Acoustic Imager, 2 to 65 kHz, 230 ft. Detection Range

Decibel Meter, Sound Level Reader with A/C Weighted, Portable SPL Meter, 30-130dB Monitor with Backlight LCD Screen, MAX/MIN, Data Hold, Fast/Slow, dB/SONE, Use for Home Noisy Neighbor Industrial

Industrial Decibel Meter (Range: 30 to 130 dB) Class 1 Sound Level Meter | Sonometro Sound DB Meter with Calibration Option, Max Hold | with Calibration Certificate by SL-4036SD

Noise Level Meter (Range: 30 to 130 dB) Class 1 Sound Level Meter | Professional db Meter | Industrial Decibel Meter for Classroom Auditoriums, Vehicle Noise Testing | Model: SL-4001

Class 1 Sound Level Meter (Range: 30 to 130 dB) | Noise Level Meter for Classroom | Professional Decibel Meter | Industrial Decibel Meter for Classroom Auditoriums | Model: SL-4023SD

Sound Decibel Meter/Certified Sound Level Meter (Range: 30 to 130 dB)/ Class 1 Noise Detector/db Meter/Professional Sound Level Meter for Industry, Vocational Training Center Model: SL-4023SD

Professional Sound Level Meter with Bluetooth & 20,000 Data Logging | Max/Min/Hold Alarm | High Accuracy dBA Noise Tester with LCD Backlight for Home, Office & Industrial Use

Decibel Meter Data Logger, Digital Sound Level Meter with Recording, dB Meter 30~130dB, 31,000 Data, 3Color Light Alarm, USB Rechargeable SPL Meter for Home, Classroom, Office, Neighbor, Industrial