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

Power input

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


2x CR123 (lithium 3,0V) included


94 x 94 x 28 mm

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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 using 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

Next to the included water level sensor a second potential-free sensor may be connected, for example a second float sensor or failure contact. The settings are easy to program in, such as an alarm delay, inactive times after an alarm, repeat notifications, test messages and alarm texts.

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
  • boats (bilge water level alarm)


  • A holiday home owner in the Spanish islands enjoys using the WaterGuard-FS in their water tank. They previously had a contract with the water company to supply new water every week to ensure that the tanks were always full. When using the Mobeye WaterGuard, the WaterGuard will automatically contact the water company if the water level falls below the minimum level. This saves money and increases the reliability of water presence.
  • Construction sites often build below the ground water level. This means that water pumps need to pump until the ground floor has been closed. Practice proves that the pumps can fail and unfortunately this can cause a lot of damage. It is so easy to install a WaterGuard with float sensor just above the sensor of the pump. Once the pumps falls out and the water rises, the contact persons receive a warning per telephone. This already saved a lot of trouble for our customers.
  • Many reports we received from boat owners who said that the WaterGuard prevented their boat from sinking. Problems with the drainage of bilge water and too much rain were cited as the main reasons. The WaterGuard’s simple warning system informed the owner to take 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 e-mail, 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

Every Mobeye monitoring device requires a SIM card for communication. The product comes with a SIM card that can be used for a low cost and immediately provides access to the Mobeye Internet portal. Alternatively, use your own SIM card.

The Mobeye M2M SIM card gives the device full functionality, including the use of the Mobeye Internet Portal and App.

With the Mobeye SIM card, communication takes place over the 4G LTE-M network with 2G as fallback. When you insert your own SIM card, the device uses the 2G network. Alarm messages are then sent via SMS and/or call to max. 5 telephone numbers.

The Mobeye SIM card is PIN protected and only works in a Mobeye device. Please do not put it in another device. For more information about the Mobeye SIM card, see: The rate for the use of the Mobeye Internet Portal and the SIM card you will find here.

Free app for your smartphone
The Mobeye Messages app is available for download from the Google Play and Apple App Stores.

Do you want to use the Mobeye SIM card but it was not included in your package? Ask the MobeyeStore team to supply one by filling out the contact form!

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