Leak Monitoring Installation
Roles: Technicians
Last updated: April 2025
A - LS4 Leak Sensor
B - Mounting Plate
C - Screws & Sheetrock Anchors
D - Water Detection Cables
Installation
1. Mount the Leak Sensor
Remove the mounting plate from the Leak Sensor.
Anchor the mounting plate using the included hardware or adhesive. If using the adhesive, it's recommended to clean the surface where the sensor will be mounted prior to mounting for better adhesion.
Slide the Leak Sensor back onto the mounting plate.
2. Connect the selected Water Detection Cable
Connect the Water Detection Cable to the Leak Sensor. A tone confirms that the cable is connected correctly.
For the Rope Cable, route and secure the cable. Water will be detected anywhere along the cable.
For the Targeted Cable, secure the probe to a flat surface using the provided hardware. Water will only be detected at the end of the cable at the contact points.
For multi-point detection, connect up to two additional Water Detection Cables to extend the detection area up to 18 feet.
3. Verify Leak Sensor Configuration
Ensure the Leak Sensor is set to the correct monitoring mode by opening the Leak Sensor's cover and holding the red button for five seconds. This will enter the device's configuration mode.
While in configuration mode, press the button again to toggle between modes until the LED matches the application.
When you've reached the right mode, wait; the device will enter that monitoring mode after a few seconds.
4. Connect Leak Sensor to Gateway
Press the red Test Connect button. The Leak Sensor’s RF LED will blink green when it's able to communicate with the Gateway.
Note
The LS4 Leak Sensor must be programmed in the NextCentury Cloud and its Gateway must be online in order to begin communicating with its Gateway.
If the Leak Sensor is programmed to its gateway and green blinks are not seen, ensure the Gateway and Repeaters are powered and online, then retry. If green blinks are not seen after retrying, an additional Repeater likely needs to be installed.
Please contact our support team for assistance.
A - LS4 Leak Sensor
B - Mounting Plate
C - Screws & Sheetrock Anchors
D - Mini Turbine (7/8")
E - Mini Turbine Clip
Installation
1. Drain toilet and disconnect supply line
Turn the toilet supply live valve off and flush the toilet until the tank is empty.
Disconnect the supply line from the toilet. There may be a small amount of water that comes out of the line upon disconnection.
2. Install the Mini Turbine
Attach the Mini Turbine to the toilet at the supply line connection point.
Reconnect the supply line to the Mini Turbine. Turn the supply line valve on.
3. Connect the Mini Turbine to the Leak Sensor
Connect the cable from the Mini Turbine to the Leak Sensor.
Flush the toilet and confirm a blue pulse on the inside of the Leak Sensor. The blue light indicates that water flow is detected.
4. Verify Leak Sensor Configuration
Ensure the Leak Sensor is set to the correct monitoring mode by opening the Leak Sensor's cover and holding the red button for five seconds. This will enter the device's configuration mode.
While in configuration mode, press the button again to toggle between modes until the LED matches the application.
When you've reached the right mode, wait; the device will enter that monitoring mode after a few seconds.
5. Mount the Leak Sensor
Slide the included Mini Turbine Clip onto the neck of the Mini Turbine.
Remove the included mounting plate from the back of the Leak Sensor.
Slide the back of the Leak Sensor onto the Mini Turbine Clip.
Alternate Mounting Option
If desired, the Leak Sensor can be mounted on a wall instead of using the included Mini Turbine Clip. Mount the Leak Sensor behind the toilet using the mounting plate's built-in adhesive. It is recommended to clean the surface of the wall prior to mounting for better adhesion.
6. Connect the Leak Sensor to the Gateway
Press the red Test Connect button. The Leak Sensor's RF LED will blink green when it's able to communicate with the Gateway.