* WARNING *
Detection Mode is always more sensitive than Interrogation or
Pinpoint modes. This means that, on occasion, when a very small
target is detected in Detection Mode, it is possible the target will
not be detected when selecting Interrogation or Pinpoint modes.
In this instance, the detector should remain in Detection Mode to
locate and mark the target position.
3.1.6 LED Display
A display of nine red LEDs provides a visual indication of target
size and proximity. The display can be switched On and Off by
simultaneously pressing the yellow Mode Select button and the
Ground Balance button.
When the LED display is switched on but no targets are detected,
then the first LED will flash, representing the heart beat.
Figure 10: LED Display with no target response