Andel FloodAlert Drain Gulley Sensor

Powered by reliable radar technology, the sensor continuously monitors water levels, providing instant alerts of rising levels, blockages or overflow events to support proactive flood risk management.

With thousands of miles of roadside drainage across the UK lacking active monitoring, blockages and rising water levels often go undetected until flooding occurs. The FloodAlert Drain Gulley Sensor offers a low-cost solution to reduce emergency call-outs, prevent surface flooding and protect vital infrastructure. Real-time data is available via the cloud-based FloodAlert portal, with automatic alerts sent by email, SMS and WhatsApp for rapid response.

Design and installation

The radar sensor housing is a compact enclosure constructed from PA12 Nylon, known for its high strength, chemical and impact resistance. The unit is designed to mount discreetly beneath slotted drain covers.

The integrated bulls-eye spirit level ensures accurate plumb installation. During fitting, the enclosure is secured to the underside of the drain cover with heavy-duty ties, positioning the sensor directly above the centre of the gulley pot for optimal performance.

For reliable operation, installations should be located where LoRaWAN^® network coverage is available, and a minimum read distance of 200mm from the rear of the mounting base must be maintained.

Benefits at a glance

• Low carbon impact, cost-effective remote gulley monitoring – ideal for local authorities managing extensive drainage networks
• Reduces flooding risk by identifying drainage problems in real time
• Tracks water levels using battery-powered, wireless LoRaWAN^® radar sensors
• Easy to install and set up
• Low maintenance
• 24/7 real-time water level data and alerts via cloud-based portal plus instant email, SMS and WhatsApp alerts
• Communication via a low-power LoRaWAN^® network
• Cuts emergency response costs and unplanned maintenance call-outs
• Supports proactive asset management and compliance with flood resilience strategies
• Enclosure constructed from PA12 Nylon, known for its high strength, chemical and impact resistance

Example installation

Alarm levels are calibrated and pre-set within the reading range (sensing cone) for each individual installation and levels are based on site conditions and a flood risk assessment for that drainage gulley system.

The illustration shows an example installation only and is based on a drain pot diameter of 450mm, the measurements shown may vary between different sites.

Typical applications

The FloodAlert Drain Gulley Sensor is ideal for a wide range of roadside and urban drainage environments, including:

• Local authority highways and roadside drainage networks
• Industrial estates and business parks
• Retail and commercial sites
• Public and private car parks
• Transport hubs, such as bus and train stations
• Any location where surface water flooding poses a risk to people, property or infrastructure.
  

Alarm levels, email, SMS and WhatsApp warnings

Alarm levels are pre-set and calibrated for each installation. Each time an alarm threshold is breached, users can receive email, SMS and WhatsApp warnings of the rising water levels.

Web portal

Access real-time and historical water level data and battery performance instantly through any web browser.