... reportBuild in rechargeable Ni-MH batteryChinese/English languageSimultaneous 12 leads20X2 character LCDPaper size: 50mmX20/30mBuilt in RS232 interface (USB is optional ... ,5,10,20mm/mVRecording modeThermal Array printingPaper specification50mmx20m,rollLCD display20x2 character LCD,display status.Safety classificationIEC60601-1 class I, type CFPower supplyAC ...