\documentclass[]{standalone}
\input{./tikzpreamble}

\begin{document}
\begin{circuitikz}[scale=2]

    \draw[color=black, thick]
    (0,3)
      to [short, *-] (-.8,3)
      to [voltmeter] (-.8,-.5)
      to [short, -*] (0,-.5)

    (0,3.2)  node[right] {V$_\text{ss}$ = 1.8V}
      to [R, l={$R_0$}, v_>=$I_{ges}$, o-] (0,1.5)
      to [nos, *-] (0,1)
      to [R, l={$R_1$}, v_>=$I_{ret}$, -] (0,-.5)
      to (0, -.8) node[draw=black, fill=white]{reticle}
      to [short, -o] (0,-1.2) node[right] {GND}

    (0,1.5)
      to [] (.6,1.5)
      to [nos, *-] (.6,1)
      to [R, l={$R_1$}, -] (.6,-.5)
    
    (.6,1.5)
      to [] (1.2,1.5)
      to [nos, *-] (1.2,1)
      to [R, l={$R_1$}, -] (1.2,-.5)

    (1.2,1.5)
        to [] (1.5, 1.5) node[right]{\ldots};
\end{circuitikz}
\end{document}