Wholesale digital level meter for construction From m.alibaba.com
CEM DT-8851 Industrial High Accuracy Digital Sound Noise Level Meter D – Industrial-Meters.com
BENETECH Decibel Meter,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 & Scientific
TK322PLUS Digital Electronic Inclinometer Angle Finder Waterproof IP65 – Tekcoplus Ltd.
Digi-Pas - High Precision Digital Level w/ Angle-Meter & Vibrometer - DWL3000XY-Bluetooth | Judge Tool & Gage
Digital Level and Protractor, 10 Inch IP54 Protected Electronic Bubble Inclinometer Angle Finder Gauge with Large LED Backlight Display & Magnetized V-Groove Base Carrying Bag Included - Amazon.com
Mengshen Decibel Meter, Digital Sound Level Meter Handheld Audio Noise Meter Tester with LCD Display Measuring 30-130dB (Battery Included) - Walmart.com
Full Function Digital Sound Level Meter - meets IEC 651 Type 2 standar — AMERICAN RECORDER TECHNOLOGIES, INC.
Digital Sound Level Meter, 25 to 140 dB | sisco.com
Digital Sound Level Meter Noise Tester Decibel Logger Volume Monitor – Tekcoplus Ltd.
SLM-30B Professional Sound Level Meter with Smart Bluetooth Function 2 – Gain Express