220-22000 Controlling, Indicating, Measuring, Monitoring, And Recording Instruments And Supplies | 220-22002 Accelerometers | 220-22007 CLINOMETERS AND INCLINOMETERS, SLOPE AND TILT MEASUREMENTS | 220-22034 LOGGING DEVICES, ELECTRONIC, LONG-RANGE DATA COLLECTION AND RECORDING FOR USE AT A REMOTE LOCATION | 220-22061 SOUND ANALYSIS EQUIPMENT AND ACCESSORIES: NOISE METERS AND DOSIMETERS, SOUND LEVEL METERS, ETC., INCLUDING NOISE CONTROL ENCLOSURES, ETC. | 220-22063 Strain Gauges, Force Gauges, And Associated Instruments: Strain Gauge Conditioners, Stress-Strain Plotters, Etc. | 220-22068 Surface Profile Measurement Equipment | 220-22084 Vibration Detecting And Measuring Equipment: Geophones, Seismic Amplifiers, Seismographs, Etc. | 845-84501 ACOUSTIC TESTING DEVICES | 907-90742 Geotechnical - Soils | 925-92500 Engineering Services, Professional | 925-92546 Geotechnical Engineering | 925-92557 INSTRUMENTATION ENGINEERING | 925-92586 Surveyor Services, Land | 926-92615 Air Quality Monitoring Services | 926-92662 Noise Testing Services | C-00450 ENGINEERING