This publication provides introductory technical guidance for civil engineers, electrical engineers and other professional engineers and construction managers interested in utilization of transducers for instrumentation of concrete structures such as dams, locks and building foundations. Here is what is discussed: 1. DESCRIPTION OF THE INSTRUMENTS 2. STRAIN METER 3. MINIATURE STRAIN METER 4. JOINT METER 5. STRESS METER FOR CONCRETE 6. PORE PRESSURE CELL 7. THE REINFORCED CONCRETE METER 8. RESISTANCE THERMOMETER 9. INSTRUMENT PREPARATION 10. WATERPROOFING TREATMENT 11. CABLE LEADS 12. CALIBRATION CORRECTIONS 13. CORRECTION FACTORS 14. RESISTANCE THERMOMETER CALIBRATION 15. FINAL CALIBRATION ADJUSTMENTS 16. INSTRUMENT INSTALLATION 17. EMBEDMENT TECHNIQUES.