Yolink YS7903-UC User manual

User Guide
YS7903-UC
Water Leak Sensor

Contents
Introduction·····················································1
Features················································· ·· 2····· ·
Product Requirements········································2
What’s In The Box···············································2
Set Up Water Leak Sensor·····································4
Sensor Placement·············································8
Using YoLink App with Water Leak Sensor················9
Maintaining the Water Leak Sensor························15
Specifications·················································17
Troubleshooting··············································18
YoLink Control·················································12
Customer Service & Warranty ······························19

Introduction
Water Leak Sensor is widely used in water leak detection. There will have an alert
when any of the three sets of probes were under the water. Download YoLink App, add
Water Leak Sensor to your smart home system, which will able to monitor your home's
security in real time.
1
SET BUTTON
PROBE
1
2
3

1
LED lights can show the current status of device. See the explanation below:
BLINKING GREEN
Connecting to cloud.
FAST BLINKING GREEN
Set up connection with devices.
SLOW BLINKING GREEN
Updating.
FAST BLINKING RED
Remove connection with devices.
BLINKING RED AND GREEN ALTERNATELY
Factory resetting.
FEATURE LIGHT
ALERT LIGHT
BLINKING RED (EVERY 30 SECOND)
Low Power Alert.
BLINKING RED (EVERY 5 SECOND)
Water Leak Warning.
2

Features
Real-time Status - Monitor the real-time state of water leak sensor via YoLink App.
Battery Status - Update battery level and send low battery alert.
YoLink Control - Trigger an action of certain YoLink devices without internet.
Automation - Set up rules for “If this then that” function.
What’s In The Box
Qty 1 - Water Leak Sensor
Quick Start Guide
Product Requirements
A YoLink Hub.
A smartphone or tablet running iOS 9 or higher; Android 4.4 or higher.
3

Set Up Water Leak Sensor
Follow the steps below to set up your Water Leak Sensor via YoLink App.
Step 1: Set up YoLink App
Get the YoLink App from the Apple App Store or Google Play.
4

If you don’t have a YoLink account, tap Sign up for an account and follow the steps
to sign up an account.
Open the App. Use your YoLink account to log in.
Step 2: Log in or sign up with YoLink account
5

Step 3: Add device to YoLink App
b. Room - Choose a room for Water Leak Sensor.
a. Name - Name Water Leak Sensor.
You can customize the name, set the room, add to/remove from favourite.
Tap the “ ” in YoLink App. Scan the QR Code on the device.
Tap the “Bind Device” to add the device to your YoLink account.
c. Favourite - Click “ ” icon to add/remove from Favourite.
6
a
b
c

Step 4: Connect to the cloud
Note
Make sure you hub is connected to internet.
Press the SET button once and your device will connect to the cloud automatically.
Place the device to whenever you want to monitor.
Cloud
Internet
SET BUTTON
7

Sensor Placement
Located the water leak sensor in a location that may experience a water leak.
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Any of a set of probes are touched by water at the same time, an alert will send to your
YoLink account.
Note
Interval between two alerts is default to be 5 minutes.
Using YoLink App with Water Leak Sensor
Device Alert
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WATER LEAK

Details
a. Name - Name Water Leak Sensor.
b. Room - Choose a room for Water Leak Sensor.
You can customize the name, set the room, set the alert interval, enable/disable alert, add
to/remove from favourite, check device history.
f. History - Check the history log for the Water Leak
Sensor.
g. Delete - The device will be remove from your account.
Tap the “Water Lwak Sensor” in App to go to its
controls.
Tap the icon for each of the settings you want to
personalize.
Tap the “ ” icon at the top-right corner to go to
details.
c. Favourite - Click “ ” icon to add/remove from
Favourite.
e. Alert Interval - Set a time between two alerts after
water leaking.
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a
b
c
d
g
f
e
d. Alert - Click enable/disable alert.

Automation
Automation allows you to set up “If this then that” rules so the devices could act automatically.
Tap “Smart” to switch to Smart screen and tap
“Automation”.
To s e t a n A u t o m a t i o n , yo u w i l l ne e d to s e t a
t r i g g e r t i m e , l o c a l w e a t h e r c o n d i t i o n , o r
c h o o s e a de v i c e wit h ce r t a i n s t a g e as a
t r i g g e r e d c o n d i t i o n . Th e n s e t o n e o r m o r e
d e v i c e s , s c e n e s t o b e ex e c u t e d .
Tap “ ” to create an automation.
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YoLink Control is our unique “device to device” control technology. Under YoLink Control,
the devices could be controlled without internet or Hub. Device which send out command
is called controller(Master). Device which receive command and act accordingly is called
responder(Receiver).
YoLink Control
You will need to set it up physically.
Find a water leak sensor as controller(Master).
Hold the set button for 5-10 seconds, the feature
light will flash green quickly.
After pairing succeed, the feature light will stop
flashing.
Find an action device as responder (Receiver).
Hold the power/set button for 5-10 seconds, the
device will enter the pairing mode.
When there is a water leak warning, the responder
will turn off as well.
Pairing
SET BUTTON
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Un-pairing
Find the controller(Master) water leak sensor.
Hold the set button for 10-15 seconds, the
feature light will flash red quickly.
The above two devices will unpair by themselves
and the feature light stops flashing.
Find the responder(Receiver) action device.
Hold the power/set button for 10-15 seconds,
the device will enter the un-pairing mode.
After unbundling, when there is a water leak, the
responder will no longer turn off.
Responder List
Continuously ..updating
YS4907-UC Gas/Water Valve
SET BUTTON
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YoLink Control Diagram
PAIRED
WATER LEAK WARNING
TURN OFFTURN ON
UNPAIRED
WATER LEAK WARNING
TURN ONTURN ON
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Maintaining the Water Leak Sensor
Firmware Update
Ensur e o u r c u s t o m e r have the best u s e r e x p e r i e nce. H i g h l y r e c o m m end yo u c o u l d
updat e o u r n e w e s t v e rsion fi r m w a r e .
Note
Only the Water Leak Sensor that is currently
reachable and has an available update will be
shown on the Details screen.
The feature light will be slowly blinking green
during the update and stop blinking when the
update done.
Tap “Firmware”.
Tap the “ ” icon at the top-right corner to go to
details.
Tap the “Water Lwak Sensor” in App to go to its
controls.
15

Factory Reset
Factory reset will erase all your settings and bring it back to default. After the factory reset,
your device will still in your Yolink account.
Hold the set button for 20-25 seconds until the feature light blinks red and green
alternately.
Factory reset will be done when the feature light stops flashing.
SET BUTTON
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Specifications
Voltage: 3V DC (2 - AAA battery)
Environment: Working Temperature: 0°C~50°C (32°F~122°F)
Working Humidity: ≤100%RH non-condensing
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Troubleshooting
Problem Possible Reason Solution
No alert or light. Water leak sensor is battery died. Please replace the battery.
Water leak sensor is
offline.
Hub is offline.
Please reconnect your hub to the Internet
and press the set button of water leak
sensor once.
Hub is powered off. Please power on the hub again and press
the set button of Water Leak Sensor once.
Water leak sensor is battery died. Please replace the battery.
Device malfunction Please contact customer service.
LED blinking, no alert. Notification has been turned off in
YoLink App.
Please turn notification on in the setting
page of YoLink App.
Alert received in App
but no LED blinking. Please contact our customer service.
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