... 128M FLASH memorizer (extended to 2G), USB can derive historical data;l 8-12 AI (4~20mA,1~5V,16 DPI ... management;l Anti-interference, electromagnetic interference, lightning prevent;l Data storage over 10 years, power break down protection;l Watchdog function ... , 32 route PIDRAM64MData Storage128MFLASH, can be extended to 2GData storage time after power off10 yearsAverage mean free error time100,000hI ...