The GEMM (G-Environmental Mini-Monitor) Recorder permanently registers all shock and vibration your product receives in the transportation and handling environment as well as in the package testing laboratory. The GEMM records the time, direction and magnitude of all forces. It will record when, how far and on what corner the package was dropped. The recorder notes the exact time on a wax coated chart. It's available with 14, 33, 60 and 90-day chart speeds. Custom chart speeds are available.