Water detector with phone notifications

Detects water leakage
at an early stage


Mobeye WaterGuard

The Mobeye WaterGuard is an effective and user-friendly alarm device for detecting water-based liquids. In an alarm situation, it sends notifications via push message, telephone call, SMS or e-mail.

Warns of water leakage and
helps prevent consequential damage.

The Mobeye WaterGuard monitors water leakage in the basement, pump house, boat, and other critical areas. The additional inputs can monitor a pump, fault signal and power supply. Operates on battery or external power.

This product is the successor of the Mobeye CM2300.

Leakage sensor

The Mobeye WaterGuard (CM4300) has a leakage sensor to detect water-based liquids. As soon as the two pins feel water, an alarm is triggered. A message will go to the contacts via the built-in communication module.
For monitoring a water level, we recommend the CM4300FS with float sensor.

Alarm messages

In the event of an alarm, the Mobeye WaterGuard sends alarm notifications by app (IOS/Android), telephone call (voice message), text message and/or e-mail. The message includes the actual temperature. 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.

External voltage vs battery powered

The Mobeye WaterGuard can run on batteries for a long time which makes it independent of an external power source. Optionally, a mains adapter is connected (12-24V DC). In this case, the power supply is also monitored. If there is outage, a message will be sent. The internal batteries ensure that the alarm device continues to work for a long time. The WaterGuard will continue to monitor the water level and input contacts and will still report alarms. Once the power restores a notification will be sent.

Potential-free alarm inputs

In addition to the leakage sensor, the Mobeye WaterGuard (CM4300) has two NO/NC inputs for the connection of alarm contacts and sensors. It also monitors the status of a device or external sensor, such as a water pump.

Network and SIM card

The Mobeye SIM card gives the device full functionality, including the use of the Mobeye Internet Portal and the 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 works on 2G. Alarm messages are then sent via SMS and/or call to max. 5 telephone numbers.

Mobeye WaterGuard
  • Pump houses
  • Cellars
  • Empty buildings
  • sewer pipes
  • Boats

Compact and effective

  • Alarm via app, call, SMS and email
  • Water detection
  • Power failure monitoring (if connected to an external power supply)
  • Two NO/NC alarm inputs
  • Easy set-up
  • Full insight into device when connected to Mobeye Internet Portal


Mobeye WaterGuard

Summary of features


  • water alarm
  • power failure monitoring
  • 2x alarm input (NO/NC)


  • to private contacts via an app, call, SMS and/or email


  • water alarm and recovery
  • power outage and power recovery
  • input alarm, (optional) alarm reset
  • battery low voltage, (missed) test message

Other settings

  • delay time on water, input and power failure alarm
  • alarm repeat interval
  • inputs adjustable as NO or NC
  • identification text, alarm texts

Mobeye SIM card (option)

  • online activation
  • gives access to Mobeye Internet Portal and App
  • communication via 4G LTE-M and 2G Quadband EGSM
  • low-cost, flat-fee, multi-provider

Mobeye Internet Portal and App
(when using Mobeye SIM card)

  • alarm per push messages/SMS/call/email/ARC
  • push messages as group message or sequential
  • status display
  • online programming
  • keep-alive monitoring
  • position display (Cell-ID)

Own SIM card (option)

  • alarm notifications via SMS text message and call to max. 5 contacts
  • communication via 2G Quadband EGSM


  • 94 x 94 x 28 mm

Power supply

  • 2x CR123, or
  • 12-24V DC + 2x CR123

Battery life

  • 1 year (if battery-operated)
  • 3 years (external power)

Communication module

  • 4G LTE-M (WW) + 2G Quadband EGSM 850/900/1800/1900 MHz


  • CM4300
  • leak sensor
  • 2x CR123 batteries
  • Mobeye simkaart (optional use)

Accessories (not included)

  • mains adapter (country specific), sensor extension cable, external antenna