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Legionella Monitoring for Data Centres

Legionella visibility
without touching
critical uptime.

Continuous wireless temperature monitoring across evaporative cooling, adiabatic and closed circuits, and staff welfare water, checked automatically against HSE L8 and HSG274 Part 1 guidance.

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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
Evaporative cooling sits squarely in scopeCooling towers, adiabatic systems, and closed circuits all fall under HSE L8 and HSG274 Part 1, and manual rounds rarely keep pace with how critical that cover is.
Uptime priorities crowd out water roundsWhen availability is everything, periodic temperature checks slip down the list. The gaps in your record sit exactly where risk develops unseen.
Low-occupancy welfare water stagnatesLightly staffed sites leave showers and washroom outlets unused for long stretches, and paper logs rarely flag the stagnation in time.
Audit evidence is scattered across systemsWhen a client or inspector asks for temperature records, pulling defensible evidence from logbooks and disparate tools takes days you do not have.
The AQUAIOT Solution

Continuous monitoring,
zero impact
on critical systems.

AQUAIOT fits wireless temperature sensors across cooling and welfare water, monitoring and alerting around the clock while your facility runs uninterrupted, so your L8 record stays current without touching uptime.

Real-time temperature profiling across evaporative cooling, closed circuits, calorifiers, loops, and welfare outlets, continuous rather than periodic.
Threshold alerts against HSE L8 and HSG274 Part 1, immediate SMS, email, and app notification when readings drift into the risk band or a flush is missed.
Tamper-evident, exportable audit trails, with RS485/Modbus and REST API integration into existing BMS, DCIM-adjacent, and CAFM systems.
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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 1 Evaporative & Welfare Water Immutable Timestamped Logs Exportable Evidence
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No commitment. Talk to our engineering team.

Who It’s For

Built for critical-facility water risk

Colocation

Defensible records for every client SLA.

Colocation operators carry water safety duty across shared cooling and welfare systems while answering to multiple clients. Continuous monitoring gives you the evidence to satisfy audits without disrupting any tenant.

  • Continuous temperature profiling across cooling and welfare water
  • Automatic alerts when low-occupancy welfare outlets drift into risk
  • Audit-ready records for client, insurer, and HSE scrutiny
  • Integration with existing BMS and CAFM infrastructure
Hyperscale

Coverage at the scale you operate.

Hyperscale campuses run extensive evaporative and adiabatic cooling across large footprints. Manual rounds cannot match that scale, so dense automated sensor coverage keeps the entire water-risk picture live and logged.

  • Site-wide coverage across cooling plant and welfare facilities
  • Real-time monitoring at calorifiers, loops, and sentinel outlets
  • Cellular and LoRaWAN telemetry across large campus footprints
  • Role-based dashboard access for facilities and compliance teams
Edge Sites

Remote visibility for unmanned sites.

Edge facilities are often lightly staffed or unmanned, which makes consistent manual monitoring impractical. Remote sensor coverage gives you eyes on water risk without a site visit.

  • Remote temperature monitoring across distributed unmanned sites
  • Retrofit-friendly sensors fitted in live environments with no shutdown
  • Threshold alerts routed to a central team automatically
  • Single dashboard view across the whole estate of sites
Critical Environment Teams

Water risk without uptime risk.

Critical environment teams protect availability above all, and any water work must respect that. AQUAIOT monitors and alerts only, never controlling cooling plant, so you gain visibility without introducing operational risk.

  • Monitoring and alerting only, no control of cooling systems
  • Encrypted telemetry over cellular and LoRaWAN
  • Tamper-evident timestamped logs for defensible evidence
  • On-demand compliance reports for audits and management review
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 for data centres, answered

Why do data centres need automated Legionella monitoring?
Data centres rely on evaporative cooling, adiabatic and closed circuits, and staff welfare water, all of which can fall within the Legionella risk band under HSE L8 and HSG274 Part 1. With uptime as the priority, consistent manual rounds are hard to sustain, so continuous sensor-based monitoring keeps every system visible and logged without affecting operations.
Does AQUAIOT control or change our cooling systems?
No. AQUAIOT is a monitoring and alerting system only. It profiles water temperatures continuously, checks them against HSE thresholds, and raises alerts, but it does not control or adjust cooling plant. Your critical systems run exactly as they do today.
How does monitoring affect critical uptime?
It does not. Sensors are non-invasive and fitted in live environments with no pipe cutting and no shutdown required. Monitoring runs alongside your operations and adds no operational risk to availability.
Does it support HSE L8 and HSG274 Part 1 compliance?
AQUAIOT supports your duty holder responsibilities under the HSE Approved Code of Practice L8 and HSG274 Part 1 by recording temperatures continuously and alerting when readings drift outside guidance. It strengthens the written scheme of control with a complete, tamper-evident record. Responsibility for the overall control scheme remains with your duty holder.
Can remote and unmanned edge sites be monitored?
Yes. Sensors transmit over cellular and LoRaWAN with encrypted payloads, so distributed and unmanned edge sites can be monitored remotely from a single dashboard, with alerts routed to a central team automatically.
How does it integrate with our existing BMS?
AQUAIOT is open and interoperable, connecting over RS485/Modbus on site and REST API to BMS, CAFM, SCADA, and analytics platforms, with no vendor lock-in. Temperature data and alerts feed into the systems your facilities team already uses.
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Ready when you are

Add Legionella visibility without touching uptime.

Talk to our engineering team about continuous monitoring, automated alerts, and compliance records across your cooling and welfare water.

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Legionella Monitoring for Data Centres – Speak to an AQUAIOT engineer about your estate.
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