rs 232 serial port

... tolerable control mode LCD backlight RS-232 Interface Multiple power source ... Primary scale/subscale: Ls/Q, D, Rs; Lp/(Q, D, Rp); Cs/Q, D, Rs; Cp/(Q, ... option) Level 0,5 V Guidance Interface Serial port  with optical isolator according to RS-232C standard Display Displayed ... (Rac, L, C), additional screen (Q, D, Rs, Rp), measurement mode display