Mobeye WaterGuard w/ Float Sensor CM4300FS

Brand: Mobeye

 245,00 ( 202,48 excl. VAT)

In stock.

The Mobeye WaterGuard CM4300FS monitors whether the water level is at or below a preset level. It sends a message if the water level is too high or too low. This way, you’ll be well informed and able to act quickly.

Communication module

4G LTE-M, 2G Fallback


1x NO/NC input, water float sensor

Power input

battery-operated (with option to connect 12-24 VDC)


2x CR123 (lithium 3,0V) included


94 x 94 x 28 mm

Share On:


Mobeye WaterGuard with Float Sensor CM4300FS

The Mobeye WaterGuard-FS CM4300FS is a water level detector with float sensor. The CM4300-FS informs contacts when the water level rises or falls. The device consists of a water float sensor and a compact communication box. By fixing the sensor in a horizontal position at the critical water level, it will be closed (when the water rises) or opened (when the water level falls). This is followed by an alarm message. The device is fully battery powered, or uses external power. The built-in communication module can connect to the 4G LTE-M and the 2G network.

In the event of an alarm, the Mobeye WaterGuard-FS sends alarm notifications by app (iOS/Android), telephone call (voice message), text message and/or email. The contact persons can be set, with multiple options for the alarm message. The Mobeye WaterGuard-FS runs for more than a year on a set of batteries. A message is sent when the battery voltage is low. When utilising an external power source (12-24V DC or mains), it also sends “power failure” notifications; this is often the first indication that something is wrong and action needs to be taken.

Mobeye WaterGuard-FS, Reliable and Effective Water Level Detector 

Besides the included water level sensor, you can connect a second potential-free sensor, such as another float sensor or failure contact. You can easily program the settings, including alarm delay, periods of inactivity after an alarm, repeat notifications, test messages, and alarm text.

Note: For detecting water leaks the Mobeye CM4300 with leakage sensor is more suitable.

How it Works

The Mobeye CM4300FS monitors whether the water level is at or below a pre-determined level. If the water level is too high or too low, it sends a message. This way you are informed well to take prompt action.

  1. Place the box in a dry place and set the contacts for the notifications.
  2. Decide at what water height you want to receive an alarm. Install the water float horizontally, if necessary with the aid of an attachment.
  3. As soon as the water closes (or opens) the float sensor, the WaterGuard-FS sends alarm messages to the contact persons. For the push messages there is a choice between an escalation plan or group message. With the escalation plan, the recipient can confirm the push message, so that the other contacts no longer receive the message. If none of the recipients confirms the push message, a phone call is made. The number of contacts is unlimited.

Typical Applications for the Mobeye WaterGuard CM2300FS include:

  • construction areas
  • water tanks
  • ponds
  • well monitoring
  • drainage systems
  • water level in sewer pipe
  • boats (bilge water level alarm)


  • A holiday home owner in the Spanish islands finds the WaterGuard-FS a valuable addition to their water tank. Previously, they had a contract with the water company to deliver fresh water weekly, ensuring that the tanks remained consistently full. With the Mobeye WaterGuard, it automatically contacts the water company when the water level drops below the minimum threshold. This not only saves money but also enhances the reliability of water supply.
  • Construction sites often involve working below the groundwater level. This means that water pumps must continue operating until the ground floor has been sealed. Experience has shown that these pumps can occasionally fail, resulting in significant damage. Installing a WaterGuard with a float sensor just above the pump’s sensor is a simple solution. If the pump malfunctions and water levels rise, designated individuals receive a telephone warning. This preventive measure has already spared our customers from many costly troubles.
  • We received numerous reports from boat owners who credited WaterGuard with preventing their boats from sinking. The primary reasons cited were issues with bilge water drainage and excessive rainfall. The WaterGuard’s straightforward warning system alerted the owners to take necessary action.

Technical data


  • CM4300FS
  • water float sensor
  • 2x CR123 batteries
  • SIM card

(Alarm) messages

  • water alarm, input alarm, power failure, alarm recovery, battery low voltage, (missed) test report
  • to private contacts via app, call, text message and/or email, or to a control room (ARC)


  • status, setting list, event history, network strength and position based on Cell ID Setting options
  • contacts (unlimited number) for alarm and service messages, message texts, repeat cycles, input type normally open or normally closed, recovery messages, alarm delay times, test interval (keep-alive), ARC, etc.


  • arming and disarming via button, time schedules and SMS

Water sensor

  • suitable for water-based liquids, 1.5 meter cable (extendable with 2-core wire)


  • 1x input for water float sensor
  • 1x NO/NC input (potential-free)
  • 1x 12-24V DC (+/- 2V)

Power supply

  • 2x CR123 lithium batteries or 12-24V DC (regulated) + 2x CR123 lithium

Battery lifetime

  • > 1 year at normal use (battery operated)
  • > 3 years at normal use (powered externally)


  • 94 x 94 x 28 mm


  • 4G LTE-M (worldwide) + 2G EGSM Quad band

The Mobeye SIM card and Internet Portal provide full functionality and optimum security. The 4G LTE-M network is very reliable and ensures a strong penetration against low energy consumption. 2G is available as a fallback.

  • 2G EGSM Quad band (900/1800 MHz)

When using your own SIM card, the device works (only) on 2G. The operation is “stand-alone”, without using the Mobeye Portal. The alarm notifications are sent via SMS and telephone call to (max.) 5 contacts. Programming is done via (simple) SMS commands.

Accessories (not included)

  • mains adapter
  • external antenna
  • float sensor for other substances (e.g. diesel)

Mobeye SIM, Portal & App service

The Mobeye Internet Portal offers a clear dashboard and essential functions, such as push notifications per app, online programming, setting up the notifications, insight into the status and history, network strength, events and position (Cell-Id). The ‘keep-alive’ monitor offers extra security by monitoring the receipt of test messages. You can activate the supplied Mobeye SIM card online.


Click to open the documents and find more information:

SIM, Portal & App

All Mobeye monitoring devices necessitate a SIM card for communication. The product is bundled with a budget-friendly SIM card, offering prompt access to the Mobeye Internet portal. Alternatively, you have the flexibility to use your own SIM card.

The Mobeye M2M SIM card provides the device with full functionality, allowing access to the Mobeye Internet Portal and App.

With the Mobeye SIM card, communication occurs over the 4G LTE-M network with 2G as a fallback. When you insert your own SIM card, the device utilises the 2G network. Alarm messages are then transmitted via SMS and/or call to a maximum of 5 telephone numbers.

The Mobeye SIM card is PIN-protected and exclusively functions in a Mobeye device. Please refrain from inserting it into another device. For further information about the Mobeye SIM card, visit: The rate for utilising the Mobeye Internet Portal and the SIM card can be found at

Free App for your Smartphone
The Mobeye Messages app is available for download from the Google Play (Android) and Apple App Stores (iOS).

Would you like to use the Mobeye SIM card, but it was not included in your package? Please contact the MobeyeStore team to request one by completing the contact form.


There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.

Customers who viewed this product also viewed