Robot Monitor

<svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg">
  <g fill="#2BA3B4">
    <!-- up -->
    <polygon points="10,2 11.5,5 10.8,5 10.8,8 9.2,8 9.2,5 8.5,5"/>
    <!-- down -->
    <polygon points="10,18 11.5,15 10.8,15 10.8,12 9.2,12 9.2,15 8.5,15"/>
    <!-- left -->
    <polygon points="2,10 5,8.5 5,9.2 8,9.2 8,10.8 5,10.8 5,11.5"/>
    <!-- right -->
    <polygon points="18,10 15,8.5 15,9.2 12,9.2 12,10.8 15,10.8 15,11.5"/>
  </g>
</svg>