... , overheat, communication faults, etc. It will stock the fault data for user's analyze. 5>With strong anti-interference ability: adopt ... character LCD, 3 signal indicators, 6 simple keyboards,. show the data directly and operate easily 6)working condition ( if special, ... <=1500mno efflorescence, no aggressive gas GUARANTEE:INSTALL AND GUIDE FOR USE IN FREE OF CHARGEGUARANTEE THE QUALITY IN ONE YEAR ...