The YoLink Water Leak Sensor 2, Water Leak Sensor 3, and Water Level Sensor are all YS7904 Water Leak Sensors, but they differ in the type of sensor cable or probe they use.

The Water Leak Sensor 2 uses a gray sensor cable that detects water along the length of the cable. The Water Leak Sensor 3 uses a white sensor probe cable that detects water only at the probe at the end of the cable.

The Water Level Sensor uses a float switch cable that has a reed switch and magnet. When the switch is submerged in water, the magnet and reed switch connect, indicating the presence of water at that level.

All three sensors can be set to detect the presence of water, but the Water Level Sensor is recommended for detecting when water levels have reached a certain point and need to be emptied.

It's important to note that the sensors are designed for different applications and use cases, so it's important to choose the appropriate sensor for your specific needs.

"Water Detected" refers to the exact moment when the YoLink Water Leak Sensor detects the presence of water. This trigger can be used to activate automations or routines that respond to the initial detection of water.

"Water Leak Alert" refers to each subsequent alert sent by the sensor if you have set up an alert interval. For example, if you set the alert interval to 4 hours, you will receive a "Water Leak Alert" every 4 hours until the sensor no longer detects water. This trigger can also be used to activate automations or routines that respond to ongoing water detection.

In summary, "Water Detected" is the initial trigger for water detection, while "Water Leak Alert" refers to ongoing alerts sent by the sensor at a specified interval.

Yes, you can receive a phone call if water is detected by connecting the YoLink Water Leak Sensor with IFTTT. You can create an "IF" statement that says "the Water Leak Sensor detects a leak warning", and then set the "THEN" statement to "Call you". This will trigger a phone call to be made to your specified phone number when the Water Leak Sensor detects water.

To set this up, you will need to have an IFTTT account and connect it with your YoLink account. Then, create a new applet that links the Water Leak Sensor to the "Call you" action. If you have any issues setting this up, you can refer to the IFTTT help center or contact YoLink customer support for further assistance.

The temperature value displayed on the YoLink Water Leak Detector's details page is used to detect the ambient temperature around the sensor. This feature is mainly designed to help users monitor the temperature in areas where the Water Leak Sensor is installed.

However, it's important to note that this temperature value cannot be used to detect the temperature of the entire room or trigger actions based on temperature changes. The feature is simply meant to provide additional information to the user about the ambient temperature in the immediate vicinity of the sensor.

It's also important to note that the temperature display is an auxiliary function and the temperature updates are not frequent or real-time due to chip limitations. The temperature will only update when the sensor sends an alert, heartbeat signal, or the SET button is pressed.

There are two ways to close the valve when the sensor detects water:

Create automation in the YoLink app (requires internet connection):

When: Water leak sensor detects a water leak (triggers an alert)

Then: Valve controller closes the valve

Set up YoLink Control, make sure the firmware of the valve controller is 090e or newer (no internet required) if you use YS4909 valve controller:

First, close the valve. Next, press and hold the set button on the water leak sensor until the green LED starts blinking rapidly. Then, press and hold the set button on the valve controller until its green LED also blinks rapidly. This establishes a direct connection between the devices without the need for an internet connection.

Yes, you can configure a relay to automatically shut off your pool pump if a certain condition is met, such as detecting a water leak. Considering that pool pumps have high starting currents, you should use a YoLink Relay in conjunction with a heavy-duty "dumb" relay to handle the pool pump's power requirements.

You can follow the instructions in the YoLink Relay manual to set up the relay system.

Additionally, you'll need a water leak sensor to detect any leaks. Once you have both the relay and sensor installed, you can create an automation rule: when the water leak sensor detects water, it will send a signal to the YoLink Relay, which will then turn off the dumb relay, consequently shutting off the pool pump.

With YoLink Control, there is no strict limit to the number of Responders you can pair with Water Leak Sensor. However, for optimal performance, we recommend linking up to 128 devices.

You can refer to this video tutorial.

Currently, Alexa supports asking "is +device name+ open/close" for the Water Leak Sensor. For example, you can ask "is the kitchen water leak sensor open" or "is the kitchen water leak sensor closed".

 Yes, setting the device to "disabled" on the Details screen will help save battery life. To further extend the battery life, you can also go to the Device Details screen and set the alert interval to 4 hours. This setting will be saved in the device and will reduce the frequency of the sensor reporting leaks, which can help extend the battery life. Once the water has been completely cleaned up and the sensor is dry, you can enable the sensor again and set the alert interval back to its default setting.

Please follow the steps below to troubleshoot the issue:

1. Check the network status of the YoLink Hub to see if it's online.

2. Press the SET button on the Water Leak Sensor to check if the LED indicator has a light. If there is no light, the sensor's battery may be dead or too low. Replace the battery and press the SET button to reconnect the sensor to the hub.

3. Check the YoLink App to see if the device status has changed and if the device is online. If it's still offline, please try resetting the sensor to its factory settings.

4. Check the communication environment between the Water Leak Sensor and the YoLink Hub. Make sure there are no obstacles between the sensor and the hub, and avoid placing the sensor in semi-closed or restricted scenarios such as underground wells/pits. The placement position has a direct relationship to the signal strength.

5. If none of these steps solve the problem, please contact YoLink customer support for further assistance.

Go to the alarm strategy page.

Edit an existing alarm strategy.

Select the device associated with the water leak detection.

Customize the alarm settings for your sensors accordingly.

Disabling the default alarm strategy will solely deactivate the offline alert, leaving your water leak alerts unaffected.

The status appears normal during a power outage because the hub hasn't received any data from the water leakage sensor. If there's no detection of water leakage, the hub attempts communication with the sensor every four hours. If no message is received from the sensor, the app will show as offline.

 To reset the YoLink Water Leak Sensor after it has detected water, you should first remove the water from the sensor cable. If you are unable to remove the water immediately, you can go to the Device Details screen in the YoLink App and temporarily set the "Alarm Strategy" to "disabled" and the alert interval to 4 hours. This will help conserve the battery life of the device while you work on removing the water.

Once you have removed the water and the sensor is dry, you can enable the sensor again and set the alert interval back to its default setting.