Generally, the recommended maximum strain for the ST350 is approximately 1,000 microstrain because of real-world installation conditions. The gage itself is capable of a higher microstrain measurement. For information regarding microstrain limits, refer to the “Instructions for Using ST350 Strain Transducer Extensions on Reinforced Concrete Structures” section in Appendix A of the “ST350 Strain Transducer Instruction Manual.”