To deactivate the detector, complete the following:
1. From normal operation, press and hold
If the detector is passcode protected to prevent deactivation,
OFF displays briefly and then PASS immediately displays.
to scroll to the required security passcode.
to confirm the selection.
The detector then deactivates.
Stealth Mode Option
The stealth (STLH) mode option ensures that the detector is undetected
in situations that require concealment. This option disables the
visual alarms, and
Only the vibrator alarm remains enabled.
The detector is shipped with stealth mode disabled.
To enable/disable the stealth mode, complete the following:
to deactivate the
1. From the EXIT screen, press
to select the option. The LCD flashes either ON or
to toggle between the ON/OFF options. Ensure
the desired option is displayed and press
The LCD returns to the EXIT screen.
If stealth mode has been enabled, the screen displays STLH continually
functions are being performed,
readings are not 0 ppm for toxics, or
reading is not 20.9% vol for oxygen.
The vibrator alarm is disabled at -20°C.
to scroll to a new user option or press
and return to normal operation.
to scroll to the STLH
to confirm the