... steel,stainless steel, aluminum , glass, polystyrene, polyethylene* Average calculation of max 9 readings* Limits setting Low-High* Standard 5.0MHz ... 001 inches* Fast calibration on integrated standard block of 4.00mm* Memory of 4000 readings with location number, RS232 output ... thickness above 99.99mmvvMeasuring units:mm/inch vvMemory:Memory of max. 4000 readings with location number-vData output:RS ...