BACKLIT LCD WITH DATA STORAGE : Features a clear backlit LCD screen for real-time readings, even in low-light job site conditions. Automatically records and stores up to 1000+ test data sets – no more manual note-taking, saving time and reducing errors. BUILT-IN STRENGTH CURVES : Comes pre-loaded with 10+ local strength measurement curves and unified conversion formulas. Enables quick, one-touch concrete strength assessment without complex calculations – ideal for engineers and QC inspectors. CALIBRATED SPRING STRUCTURE : High-strength calibrated spring ensures stable impact force and consistent results across every test. Reliable repeatability meets industry standards, giving you confidence in your concrete strength evaluations. ERGONOMIC & PORTABLE DESIGN : Compact aluminum alloy body with a comfortable,grip. Low-consumption battery supports extended on-site testing sessions – lightweight enough for all-day use on construction sites. USB DATA UPLOAD : Supports USB data transfer to PC software for post-test analysis and professional reporting. Easily export test records, generate strength reports, and archive project data for compliance and quality control.