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Legionella Monitoring Equipment

Sensors. Gateways.
The full kit.
Fitted and live.

Monitoring takes more than one device. AQUAIOT supplies the full equipment set, from temperature sensors to gateways to the cloud dashboard, all retrofit-friendly and installed by engineers, so it works from day one.

Speak to an Expert See how it works
Live monitoring. Continuous compliance.
AQUAIOT L8 Dashboard
42Outlets OK
3Caution
1Alert
Sentinel Outlets – Live
Tank A – Cold Feed18.4°COK
Outlet 7 – HWS Return49.1°CCaution
Outlet 12 – Sentinel56.8°CAlert
CW Tank B17.2°COK
Man-in-a-van visits leave gapsInspection sheets capture one moment. Between rounds, temperatures drift unseen, and your compliance record has no answer for it.
Legionella thrives between 20C and 45CRisk conditions develop and resolve between visits. Manual schedules cannot catch what happens overnight.
Audit prep should not take daysWhen an inspector asks for records, paper logbooks take days to compile. A digital audit trail is instant.
Every missed flush is a duty-of-care gapOne undocumented flushing event is a defensible record waiting to fail under legal scrutiny.
The AQUAIOT Solution

From sensor
to gateway
to dashboard.

A monitoring deployment is a set of equipment working together: sensors on the assets, gateways carrying the data, and the cloud that makes sense of it. AQUAIOT supplies and installs the whole set, specified to your water system.

Sensors on the assets, wireless temperature devices at tanks, calorifiers, loops, TMVs, and sentinel outlets, clamped on without pipe cutting or shutdowns.
Gateways and telemetry, LoRaWAN gateways and cellular links with encrypted payloads carry readings off site, so dispersed and remote assets stay connected.
Dashboard and alerts included, the cloud dashboard, thresholds, and SMS, email, and app alerting come as part of the equipment set, not a separate purchase.
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Live Outlet Status
CW Tank – Return Temp16.8°C
HWS Flow – Calorifier60.4°C
HWS Return – Loop 349.3°C
Sentinel Outlet 1256.8°C
Alert triggered – Outlet 12
Temperature above L8 calorifier threshold. Notification sent 14:32.
How It Works

Three steps to continuous L8 compliance

Step 01

Monitor

AQUAIOT sensors are deployed at tanks, loops, calorifiers, and sentinel outlets. Temperature is profiled continuously, every reading timestamped and logged to the cloud over secure cellular or LoRaWAN telemetry.

Step 02

Alert

When temperatures drift outside HSE L8 thresholds, or when a scheduled flush is missed, AQUAIOT triggers an immediate alert via SMS, email, or app, with role-based escalation rules for your estates team.

Step 03

Record

Every reading, alert, and action is captured in tamper-evident audit logs. Records are exportable on demand and integrate with CAFM, BMS, and AIMS systems, so audit preparation is minutes, not days.

Capabilities

Everything your L8 programme needs

Purpose-built for estates, facilities, and compliance teams managing water systems across single or multiple sites.

Real-time temperature profiling

Continuous monitoring at tanks, calorifiers, loops, and sentinel outlets. Every reading timestamped and stored, never a gap in your record.

HSE L8 threshold alerting

Thresholds checked against HSE L8 and ACoP guidance. Alerts fired immediately when cold water exceeds 20C or hot water falls below 50C at point of use.

Missed-flush detection

AQUAIOT detects when scheduled flushing routines are not completed and generates an automatic alert, so no event is undocumented.

Tamper-evident audit trails

Every reading and action is logged with a secure, unalterable timestamp. Exportable records ready for audit, inspection, or HSE enquiry at any time.

API / BMS / CAFM integration

Open and interoperable. AQUAIOT connects to your existing SCADA, AIMS, CAFM, and BMS platforms via RS485/Modbus or REST API, no lock-in.

Retrofit-friendly deployment

Non-invasive sensors designed for live environments. No pipe cutting, no shutdown. AQUAIOT engineers handle site survey, installation, and commissioning.

Compliance & Standards

Aligned to the standards your auditors check.

HSE L8 & HSG274 Part 2 Sensors To Dashboard Retrofit Friendly Engineer Installed
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No commitment. Talk to our engineering team.

Who It’s For

Built for the teams responsible

Housing Providers

Protect tenants. Prove compliance.

Housing associations and registered providers carry a statutory duty of care over water systems in their properties. Manual L8 management across multiple sites is operationally fragile, and increasingly under scrutiny.

  • Continuous monitoring across all properties, single dashboard view
  • Automatic alerts when vacant properties develop risk conditions
  • Audit-ready records for insurance, regulatory, and legal purposes
  • CAFM and property management system integration
NHS & Public Sector

Clinical-grade water safety. Without the admin burden.

NHS Estates and public sector facilities operate under HTM 04-01 and HSE L8 obligations. The complexity of large estates, multiple buildings, and dense pipework makes manual monitoring inadequate at scale.

  • Dense outlet coverage across clinical environments
  • Real-time temperature monitoring at thermostatic mixing valves and outlets
  • Integration with existing BMS and CAFM infrastructure
  • Automated compliance records compatible with HTM 04-01 requirements
Facilities & Estates

Less time on rounds. More time on management.

Commercial estates, universities, leisure facilities, and large offices face the same challenge: manual L8 inspection rounds are resource-intensive and provide only a snapshot. Automation changes that calculus entirely.

  • Replace labour-intensive manual rounds with automated monitoring
  • Role-based dashboard access for estates managers, deputies, and contractors
  • Reduce reactive call-outs, detect issues before they escalate
  • On-demand compliance reports for building managers and insurers
Defence & Secure Sites

Secure by design. Compliant by default.

Defence estates, MoD sites, and government facilities carry the same L8 duty of care as any other property, often across aging, complex pipework that is hard to reach and harder to document. Manual rounds leave gaps AQUAIOT closes permanently.

  • Encrypted telemetry, cellular and LoRaWAN with secure payload transmission
  • Tamper-evident immutable logs with timestamps and user actions
  • Role-based dashboard access, right records to the right people
  • Auditable compliance records meeting MoD and government estate requirements
Open, interoperable systems. No lock-in. Engineered for operational environments.
Cellular + LoRaWAN telemetry Encrypted payloads & OTA updates RS485/Modbus + REST API Role-based cloud dashboards CAFM / BMS compatible
Questions & Answers

Legionella monitoring equipment, answered

What equipment does Legionella monitoring need?
A complete deployment needs three layers of equipment: temperature sensors fitted to the assets, gateways and telemetry to carry the readings off site, and a cloud dashboard with alerting to view and act on them. AQUAIOT supplies all three, specified to your water system during a survey, so the equipment is matched to your tanks, calorifiers, loops, and outlets rather than a generic kit.
Is the equipment retrofit-friendly?
Yes. The sensors are designed to clamp to pipes and assets in live environments without cutting into them or stopping the water supply, and the wireless telemetry means no cabling runs are needed. This makes the equipment suitable for occupied and operational buildings, including healthcare and housing, where shutdowns and disruptive installation work are difficult to arrange.
Do we need gateways on site?
It depends on the connectivity. LoRaWAN sensors report to a gateway that forwards data to the cloud, so one gateway covers many sensors across a building. Cellular-connected devices can report without one where that suits a remote or standalone site. AQUAIOT specifies the right mix during the survey, so the telemetry equipment fits the building rather than forcing one approach everywhere.
Who installs the equipment?
AQUAIOT engineers. They survey the water system, specify the equipment and its placement, fit the sensors and gateways in the live environment, and commission the deployment so every device reports correctly and thresholds and alerts are set. You receive a working monitoring deployment rather than a box of hardware to install and configure yourself.
Can we start small and add equipment later?
Yes. A deployment can begin with the highest-risk assets and expand across more outlets, buildings, or sites over time, with new sensors joining the same dashboard. Because the equipment is wireless and retrofit-friendly, extending coverage adds to the existing system rather than requiring a parallel one, which suits phased rollouts and staged budgets.
Does the equipment integrate with our building systems?
Yes. On site the equipment can speak RS485/Modbus, and the cloud platform exposes an API for integration with BMS, CAFM, SCADA, and AIMS. This means the monitoring equipment can feed the systems your estates and engineering teams already use, keeping the deployment open and interoperable rather than a closed island of hardware with no way out.
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Get the full kit, fitted and working.

Talk to our engineering team about the complete Legionella monitoring equipment set, from sensors and gateways to dashboard and alerts.

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Legionella Monitoring Equipment – Speak to an AQUAIOT engineer about your estate.
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