Yolink YS7904-UC Installation & User Manual page 5

Wall-Moun ng Slot
Ba ery Compartment
Includes two AAA
non-rechargeable
ba eries
Phono Jack
Used for sensor cable
extension
Status LED
* Not visible while there is no
opera on with the SET bu on
or while device is in normal
monitoring status
SET Bu on
Phono Plug
Sensor Cable
Used for water detec on
Phono Jack
Used for extending sensor
cable
Alarm Tones
OR You can Replace the Sensor Cable with a
Water Sensor Probe Instead
(Op onal, Sold Separately)
One Beep
Device power-up / bu on pressed
Two Beeps
Warning
(Two beeps every 2 seconds for
the first minute. Two beeps every
5 seconds for the next 12 hours.
Sustaining two beeps once a
minute a er 12 hours)
Phono Plug
Moun ng Hole
Detector Probe
Used for water detec on
or low water level warning
3