
Flexibell — Water Level Indicator & Alarm System
Water level indicator with alarm. Shows full, low and overflow levels, with a buzzer alert for any tank.
Flexibell is Aquabrim's water level indicator designed for homes, apartments, commercial buildings and institutional facilities that need clear visibility of water levels across multiple tanks. It helps users monitor tank levels and receive alerts when water becomes low, reaches the configured full level or approaches overflow.
Using RF-based wireless sensor technology, this water tank level indicator receives water level information from sensors installed in individual tanks without requiring signal wiring between the tanks and the display unit. Flexibell can display water levels for up to 6 water storage tanks, making it suitable for properties that need centralized water level monitoring.
Unlike an automatic water level controller, Flexibell focuses on water level indication and alarm notifications rather than automatically starting or stopping the motor. Its configurable low, full and overflow thresholds help users identify important tank conditions and take action when required.
With a digital display, high-output buzzer, LED indicators and optional remote monitoring capabilities, Aquabrim Flexibell provides a practical wireless water level indicator and alarm solution for residential, commercial and institutional applications.
Key Features
How It Works – Step by Step
Connects Wirelessly to Tank Sensors
Wireless water level sensors installed in the connected tanks transmit level data to Flexibell using RF communication in the 433–434 MHz frequency band. This eliminates the need for signal wiring between the tanks and the indicator unit.
Monitors Multiple Water Tanks
Flexibell displays water level readings for up to 6 water storage tanks on a centralized digital display, allowing users to monitor tank conditions from a single location.
Indicates Water Levels in Real Time
The digital display and LED indicators help users understand the current water level and identify changes in connected tanks.
Triggers Low-Level, Full-Tank and Ove
When a tank crosses its configured low, full or overflow threshold, Flexibell activates the corresponding audible and visual alerts. This helps users identify when a tank needs attention.
Supports Optional Remote Monitoring
With the optional web-based monitoring service, Flexibell can send SMS alerts to multiple mobile numbers. Optional MODBUS connectivity also allows supported data to be integrated with a compatible Building Management System.

Technical Specifications
Everything you need to know about the FLEXIBELL at a glance.
FAQ
Frequently Asked Questions
Flexibell is a water level indicator and alarm system that monitors multiple water storage tanks and alerts you the moment a tank runs low, becomes full or overflows. Unlike a motor controller, Flexibell does not operate pumps — it purely monitors and alarms.
Flexibell can display and monitor water levels for up to 6 water storage tanks from a single unit, with each tank configured individually.
No. Flexibell is a monitoring and alarm system only — it does not start or stop motors. It is designed for households and buildings that want water level visibility and alerts without automating the pump itself.
No. Flexibell receives sensor data wirelessly in the 433 to 434 MHz RF band, so no wiring is needed between the tanks and the controller unit.
Yes, as an optional feature. When connected through Aquabrim's web based monitoring service, Flexibell can send SMS alerts for low, full and overflow events to multiple mobile numbers.
Yes, optionally. Flexibell's data can be uploaded to a BMS over the MODBUS protocol, or shared through the optional web based monitoring system, for remote monitoring.
Yes. If a motorized valve is installed near a tank, Flexibell displays its open or close status on the unit.
The Flexibell unit includes the buzzer, display and alarm system. Level sensors, signal repeaters and the web based monitoring service are not included and should be ordered separately based on site requirements.
Yes. Low, full and overflow alarm levels can be set individually for each connected tank, so Flexibell can be configured to match the specific needs of every tank on site.
Flexibell water level indicator is manufactured by Aquabrim Home Appliance Pvt. Ltd., based in Ghitorni, New Delhi, India.
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