Fibaro Flood Sensor Review

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Written by Eric

Last Updated: 11/12/2020

Fibaro Flood Sensor Review

 Fibaro Flood Sensor ReviewFlood damage can be devastating and quite costly to a homeowner. It is important to take steps before a flood occurs to ensure that one’s valuables and possessions are protected at all times. The Fibaro Flood Sensor Model FGFS-101 ZW5 was built to function as the most effective water leak sensor in today’s smart-equipped home. This versatile,wireless Fibaro Flood Sensor is the newest universal, Z-Wave Plus compatible water leak and freeze detector offered by the Fibaro corporation. It is perfectly designed and pairs visually pleasing aesthetics with advanced technology.

Constructed with the user in mind, the Fibaro Flood Sensor’s built in temperature sensor constantly monitors ambient temperature. It will sound an alarm and provide a visual LED notice when it detects water. It can also provide consumer alerts on a user’s computer, smartphone or tablet. Upon detecting a leak, the Fibaro Flood Sensor can be equipped to connect to a system of electrovalves (sold separately) that will automatically close off the water supply, thus minimizing water damage.

Manufactured in Europe to the highest quality standards with 24-karat gold plated telescopic probes, the Fibaro Flood Sensor provides the user with precise readings as well as durability. The Fibaro Flood Sensor can be installed quite simply by anyone. It is small enough to be placed anywhere it is needed, in an exact spot on the floor or on the wall, in any area that is prone to flooding. Basements, laundry rooms, bathrooms, and boiler rooms are all examples of places in which the Fibaro Flood Sensor has been installed.

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Key Features

  • Z-Wave Plus compatible
  • Leak sensor
  • Temperature sensor
  • Sound alarm
  • Telescopic strands
  • Light indicator
  • Tamper alert
  • Designed to prevent corrosion
  • Lithium Ion battery powered (included)
  • Two years of battery life
  • Optional VDC power available
  • Simple scene activation
  • One-year warranty


Upon detecting even the smallest amount of water, the Fibaro Flood Sensor will inform the user through a sound alarm as well as a visual indicator of flashing LED lights. If the home is already Z-Wave Hub equipped, alerts can be sent wirelessly to the user’s choice of smartphone, tablet or computer.  The sensor can also be configured so that a Z-Wave valve (sold separately) will shut off water flow instantly. An external probe (which is sold separately and may also be purchased at may be attached to the Fibaro Flood Sensor to keep an eye on possible leaks in locations that are hard to reach.

Additionally, the Fibaro Flood Sensor will report any movement or tilt of its main unit. What’s more, the Fibaro Flood Sensor can float on the surface of the water and will keep sending alarm signals even if it becomes submerged in water.


The Fibaro Flood Sensor was created to work with existing technology in the home. Voice status updates may be obtained through Google Home or Alexa through a compatible Z-Wave Hub, including Vera, SmartThings and Fibaro. Additionally, the Fibaro Flood Sensor will work with any open Z-Wave Hub, including:

  • Zipato
  • Vera
  • SmartThings
  • Nexia
  • HomeSeer
  • Home Assistant
  • Fibaro Home Center Lite

Z-Wave devices are designed to receive and repeat signals, thus increasing the Z-Wave network’s range. It is one of the leading solutions in smart home automation systems. Users may also download the Fibaro app for their iPhone or Android smartphone. This will allow users to receive alerts via smartphone, email or tablet.

Powering Modes

The Fibaro Flood Sensor can be powered in two ways. The default method of providing power to the sensor is a built-in lithium ion battery. It can also be powered by constant voltage, upon connecting a 12/24 V DC power supply to its +12 and GND terminals. Constant powering will then add the Fibaro Flood Sensor to the Z-Wave network as a DC powered device, functioning as a signal repeater on the Z-Wave network and thus extending the coverage and communication among devices on the same network.

If it is battery-powered, the Fibaro Flood Sensor will communicate with the primary Z-Wave controller device periodically. If it detects an alarm, however, this will be sent immediately. Other configuration parameters and association settings will be updated only at wake-up intervals or if wake-up occurs manually by clicking the TMP button on the unit. As installing the battery acts as an emergency backup power source, it is highly recommended for users to do so even if they are using constant voltage as the primary power source.

TMP Button

The TMP button on the Fibaro Flood Sensor is one way in which the user can control the sensor. This easily accessible button allows the user to access the Menu mode and perform a variety of actions, including sending wake-up notifications, adding or removing the device to or from a Z-Wave network, and navigating through the Menu.

Visual LED Indicator

The Visual LED Indicator on the Fibaro Flood Sensor is another way in which the user can track many scenarios. The system’s built-in LED diode will help to signal the flood sensor’s operating alarms and modes, as well as inform the user of the current temperature and the Z-Wave network range. Indicators include:

  • Alternating white and blue light: flood alarm
  • Periodic temperature readouts (if on battery powered mode with parameter no. 63 set to 1)
  • Current temperature readouts (if on constant powered mode with parameters 50, 51, 61 and 62)
  • Currently chosen menu position


The Menu on the Fibaro Flood Sensor provides the user with direct, manual control over the device. By pressing and holding the TMP button for three seconds, the following Menu positions will signal with LED colors:

  • Yellow: sensor is being reset
  • Violet: test of the Z-Wave network range
  • Green: cancel alarm for associated devices
  • White: entering Menu confirmation

To choose the desired function, release the TMP button. The choice is then confirmed with a further click of the TMP button.

Wake Up

The Fibaro Flood Sensor must be periodically woken up when in battery mode. This allows the device to receive information about new configuration, such as associations and parameters, from the controller. Waking up the sensor manually simply involves one click of the TMP button.


Resetting the Fibaro Flood Sensor will restore it back to its original factory settings. Keep in mind, however, that all information about the Z-Wave controller as well as any user configuration information stored in the device will be deleted if the device is reset. If the Fibaro Flood Sensor needs to be reset, the user must press and hold the TMP button. In a few seconds, the Visual LED Indicator willturn yellow. After the user releases the TMP button, he or she must then click the TMP button once to authorize the selection of reset. In a few seconds, the FibaroFlood Sensor will restart with its factory settings intact, signaled by an acoustic sound and the red visual indicator color.

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The range of the Fibaro Flood Sensor is designed to accommodate up to 50 meters outdoors and up to 40 meters indoors (depending upon the building structure and terrain in which the device is placed).

A Network Range Test can be conducted directly from the Fibaro Flood Sensor to ensure that the device can communicate with the Z-Hub home center. By holding the TMP button for 10-15 seconds, the Visual LED Indicator will blink violet. Releasing the TMP button and holding it again will begin the test. The quality of the range of the network will be indicated by colors on the Visual LED Indicator:

  • Green: direct communication with the network
  • Yellow: routed communication within the network
  • Violet: limited communication within the network
  • Red: no signal is being sent to the network


The Fibaro Flood Sensor has won multiple prestigious awards for its technology and design, including the 2016 iF Design Award and the 2017 CES Innovation Award. Clearly, the device’s innovative technology and clever, artistically-pleasing design have impressed many.

What Customers Say

Customers love the fact that the Fibaro Flood Sensor can be battery or DC-powered. They also appreciate the way it seamlessly integrates into the technology already found in their homes.


No one wants to think about the devastation that occurs during a flood, nor the fact that most homeowners’ insurance policies do not cover water damage. In order to prevent such devastation in the first place, the Fibaro Flood Sensor was created. Its magnificent European design has allowed it to communicate with the latest technology found in today’s smart homes. The ease of use of the device is unparalleled, making the Fibaro Flood Sensor an even more effective home monitoring system.

The Fibaro Flood Sensor can be placed in any area of the home that is most likely to flood. Through a unique network of technology and advanced design, the Fibaro Flood Sensor can alert a user via device, computer, smartphone or tablet of changes it detects in temperature, detections of water, and movement in the area in which it is placed.These warnings can help a user stop flood damage before it begins, saving time, money and heartache.


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