GE B20 User Manual page 22

On the screen:
Audio alarms paused indicator - Indicates all audio
alarms are paused and the amount of time
remaining for the alarm pause period displays as a
countdown timer. Displays in the upper left corner
of the screen.
In the front panel: battery.
Equipotentiality. Monitor can be connected to
potential equalization conductor.
Alternating current.
On the keypad:
Bell cancel. Audio pause.
Home. Return to the normal screen view.
ON/OFF.
Fuse.
Gas inlet.
18
Gas outlet.
Degree of ingress protection.
Degree of protection against harmful ingress of
water:
Components not marked with and IPX n code are
IP21
rated as Ordinary (no protection against fluid
ingress). All other IPXn rated components have the
degree of protection per the 'n' rating.
SN,S/N Serial number.
Date of manufacture. This symbol indicates the date
of manufacture of this device. The four digits
identify the year.
Manufacturer: This symbol indicates the name and
the address of the manufacturer.
European authorized representative.
European Union Declaration of Conformity.