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Evaluating the integrity and the durability of existing structures
Webster hardness testers also known as Webster hardness pliers
200000 lux-reading x 100
Frequency response
Concrete rebound hammer whose button applies stretching techniques and is not easy to fall off
CENTER-326 Sound Level Calibrator for Sound Level Meter (94dB-114dB) Noise Meter Calibration Gauge Vibration Meters Evaluating the integrity and theBrand: Graigar Color: gray white Features: 94dB And 114dB Sound Calibrator At 1KHz Accurate And Simple To Use Fits 1inch And 1 2inch Microphones Low Battery Indicator IEC 60942(2003) Class 2, Ans1. 40 1984 model number: CENTER 326 Part Number: CENTER 326 Details: SPECIFICATIONS Output Sound Pressure Levels: 114dB and 94dB re 20uPa under reference Conditions Output Frequency: 1000Hz 2% Total Harmonic Distortion: <4% Reference Condition: Temperature
