Denso BHT-805BW Operator's Manual page 22

Components and Functions
Screen Display
This is the battery icon.
Indicates the current battery power level. (See page 25.)
Displays when the
When the
program, the entry mode changes from "numeric entry" to "alphabet entry" and
displays.
Alphabet entry is used when performing FTP settings. Refer to the User's Manual for
details.
displays when a link is established with the CU-811.
When an attempt is made to perform communication with the CU-811 when no link
has been established, the
When there is no response from the CU-811, when waiting for the link with the
CU-811 to be established, or when waiting for the link to be disengaged, the icon
displays in the order
Displays when the BHT is connected to the access point.
The radio field intensity status displays as follows.
Strong
displays when the BHT is not connected to the access point.
Connection status with access point
Link status with CU-811
Alphabet entry status
Key shift status
Battery icon
key is pressed and the keys are in the shift status.
key is pressed while set to alphabet entry mode at the user
icon flashes.
Weak
8
.