Aguardio hygiene sensors

Innovative Legionella prevention in UK fire stations

Monitoring Legionella remotely

Aguardio Hygiene Sensors provide an innovative solution for monitoring Legionella disease in several UK fire and rescue stations. This system offers remote access to data, eliminating the need for travel, saving time, and reducing overhead costs

The challenge

Ensuring compliance with Legionnaire’s disease prevention regulations in UK fire stations is a legal requirement. This typically involves following a strict procedure, costing the UK Fire Service and Rescue Stations approximately £40,000 annually. The procedure includes monthly inspections by an inspector at each station to conduct tests aimed at monitoring legionella bacteria growth in the pipes.

Temperature control is a key aspect of this strategy, aimed at maintaining water at temperatures that discourage Legionella growth. Tests are conducted at water outlets where aerosols, such as those from showers or taps used for drinking water, may form, as legionella bacteria are primarily transmitted through inhalation of air particles.

The standards dictate that cold water should ideally be kept below 20°C (after a minute to effectively eliminate bacteria), while hot water should be maintained at a minimum of 45°C after 2 minutes to achieve the same effect.

Results

  • £40,000 saved on maintenance costs
  • Precise data erradicating the risk of human error in data reporting
  • Improved water safety
  • Alerts to prompt action when needed

The solution


To tackle the challenge of remote Legionella monitoring and start developing an optimal solution, the initial order of 17 Hygiene Sensors and 2 Bluetooth gateways were installed and went live. Aguardio’s Sensors were strategically installed on electric showers and hot and cold taps across the fire stations, initiating the data collection process. 

The process of gathering data from Aguardio’s sensors started and analysed on Aguardio’s online platform, Aguardio Hub, to ensure that the devices were proving the right data in order to efficiently comply with Legionella monitoring as well as provide insights into the usage patterns of the building.

The process resulted in Aguardio’s sensors, strategically placed on hot or cold taps, demonstrated their capability to provide precise temperature readings (temperature stamps) after 60 seconds of water flow – one stamp for cold water and two stamps for hot water.

These temperature reading were integrated into Aguardio’s online platform, Aguardio Hub, enabling fire station managers to search for specific fire stations, sensors and their status with either green light indication for water outlets that “passed” the test successfully and red light indication, meaning that a new test needs to be performed.

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