Review on Calibration Certificate Measurement Environmental Mechanical by Joe Larjin

Based on my experience, this calibration certificate for my sound meter has greatly improved its accuracy. I rely on this tool to make precise noise measurements in my line OF work, and i have consistently found it to be reliable. The pros of this product include easy-to-follow instructions and fast delivery time .The only con is the relatively high cost. Overall, I highly recommend this calibration certificate for anyone who uses a sound meter frequently in their work..