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IoT Legionella Monitoring

Connected sensors.
Cloud dashboard.
Live data.

Connected IoT sensors stream water temperature over LoRaWAN and cellular into a cloud dashboard, turning a manual logbook task into a live, queryable data feed across your assets.

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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

Edge to cloud.
The full
IoT stack.

IoT monitoring is about the data path: sensor at the edge, telemetry over the air, analytics in the cloud. AQUAIOT engineers each layer so Legionella temperature control runs on live connected data.

Connected sensors at the edge, IoT temperature devices on tanks, calorifiers, loops, and outlets reporting continuously, with over-the-air configuration and firmware.
Secure telemetry over the air, encrypted payloads carried on cellular and LoRaWAN, so dense outlet coverage and remote assets stay connected without cabling.
Cloud analytics and alerts, a role-based dashboard with trendlines, threshold alarms, exports, and SMS, email, and app notifications.
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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 Cellular & LoRaWAN Encrypted Payloads Cloud Dashboard
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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

IoT Legionella monitoring, answered

What is IoT Legionella monitoring?
IoT Legionella monitoring uses connected sensors that stream water temperature data over wireless telemetry to a cloud platform. Each monitored asset becomes a live data source rather than a point an engineer visits with a probe. The cloud layer checks thresholds, builds trendlines, and raises alerts automatically, turning a manual task into a continuous data feed.
What connectivity do the IoT sensors use?
AQUAIOT sensors transmit over LoRaWAN and cellular telemetry, both well suited to estate-wide IoT deployments. LoRaWAN gives long-range low-power coverage for dense sensor counts, while cellular reaches sites without fixed network infrastructure. Payloads are encrypted and devices support over-the-air configuration and firmware updates.
Where does the data go and how is it analysed?
Readings flow to a cloud dashboard where they are logged with secure timestamps, plotted as trendlines, and checked against the thresholds you set per asset. The platform raises alarms and sends SMS, email, and app notifications when a reading drifts out of range. Records are exportable on demand for audit.
Can the IoT data integrate with other platforms?
Yes. AQUAIOT is open and interoperable. On site the devices speak RS485/Modbus, and the platform exposes a REST API for integration with SCADA, BMS, CAFM, and AIMS. IoT temperature data can flow into the systems your engineering and estates teams already use, with no vendor lock-in.
Is an IoT approach secure?
Yes. Telemetry uses encrypted payloads, dashboard access is role-based so each user sees only what they should, and devices are configured remotely without exposing site infrastructure. These are the practical security foundations for an IoT deployment across distributed and sometimes sensitive estates.
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Ready when you are

Put your water data on the network.

Talk to our engineering team about connected IoT sensors, telemetry, and a cloud dashboard for Legionella temperature control.

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