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Keep hot water flowing.
Keep your business moving.

See water temperature and individual heating elements in one clear view. Spot developing problems, prepare maintenance and help keep your business moving.

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Guardian Element Monitor
Guarding Client Uptime. Protecting Trade.

White cylinder with water temperature, individual element indicators and illustrative pipework.
Product preview · sample readings
Thermostat callElement load

01Earlier awareness

02Better prepared maintenance

03A clearer view of your sites

Before the interruption

From reactive call-outs
to proactive maintenance.

Designed to support predictive and proactive maintenance, GEMS helps your team recognise changing performance. A cylinder can still supply hot water even when one heating element needs attention.

EARLY WARNING

Identify the element that needs attention.

Compare a call for heat with measured electrical load. When the available readings support it, an individual element can be highlighted for investigation.

PLANNED RESPONSE

Prepare the visit with useful context.

Review current conditions and temperature history before attending site, helping your team decide what to investigate and when to respond.

TRADING CONTINUITY

Give your team time to act.

Earlier awareness can support maintenance before a developing issue becomes a complete loss of hot water, helping reduce avoidable disruption.

Explore what GEMS brings to your business

The history behind the condition

Real readings.
Useful context.

These genuine Grafana monitoring snapshots show temperature and individual element measurements over time, giving your team context beyond the latest reading.

Explore the app & dashboards

Water temperature history

Outlet temperature across the six-hour monitoring window.

  • Outlet temperature · °C
Genuine Grafana capture: water temperature history, six-hour window on 5 October 2026, with original axes and legend.
Open full-size graph
Grafana monitoring snapshot · 5 October 2026 · six-hour view · times shown in UTC

Top element electrical history

Review measured current and power alongside the thermostat call signal.

  • Current · A
  • Power · W
  • Thermostat call · on/off
Genuine Grafana capture: top element electrical history, six-hour window on 5 October 2026, with original axes and legend.
Open full-size graph
Grafana monitoring snapshot · 5 October 2026 · six-hour view · times shown in UTC

Bottom element electrical history

Compare the electrical measurements, thermostat call and outlet temperature over time.

  • Current · A
  • Power · W / kW
  • Thermostat call · on/off
  • Voltage · V
  • Outlet temperature · °C
Genuine Grafana capture: bottom element electrical history, six-hour window on 5 October 2026, with original axes and legend.
Open full-size graph
Grafana monitoring snapshot · 5 October 2026 · six-hour view · times shown in UTC

Case study · London Victoria station

One cylinder.
Two elements.
A busy coffee shop.

At a London Victoria station coffee shop, GEMS brings a separately monitored view of both heating elements alongside water temperature.

Read the London Victoria case study
LOCATIONLondon Victoria

Station coffee shop

ASSET VIEW1 cylinder / 2 elements

Individual element monitoring

Simple for your team

See it. Understand it. Respond.

Open your site view

Sign in and see the locations assigned to your account.

Understand the condition

See temperature, element state and the available history in context.

Plan the next action

Share a clearer picture with your maintenance team and agree the response.

See how GEMS works for you

Make maintenance a better informed decision.

Talk to E2M about GEMS for your site or estate.

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