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Problems We Solve
Hidden energy waste from systems running outside hours.
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Tenants disputing service charge allocations.
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Equipment left on standby consuming power 24/7.
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Limited evidence for energy audits or carbon reporting.
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Phase imbalance or overloads going unnoticed, risking faults and inefficiency
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Our Go-To Sensors
Here are the sensors we typically use for power monitoring.

Milesight CT10x
Single-phase power monitoring
A compact, wireless meter for tracking energy use on single-phase circuits. It’s ideal for smaller loads, individual assets, or standard commercial/domestic circuits — giving clear visibility of where energy is being consumed and wasted.
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Single-phase current monitoring (various amp options available)
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Accuracy: Class 1
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LoRaWAN wireless transmission
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Clamp-on CT design for quick, non-intrusive installation
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Battery or external power options
Milesight CT3xx
Three-Phase Power Monitoring
Designed for monitoring larger loads such as HVAC, chillers, pumps, or distribution boards. Provides detailed insights into energy use and imbalances.
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Monitors voltage, current, power factor, and energy usage
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Handles three-phase systems up to 600A
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High accuracy with multiple CT sizes available
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LoRaWAN connectivity for seamless integration

Do we need a BMS?
No. We work BMS-independently and can complement any existing controls.
Can you turn things off automatically?
We focus on visibility and clear actions; where appropriate, we can integrate with your controls team to automate agreed rules.
Will installs disrupt tenants?
Devices are discreet, battery-powered where possible, and fitted around access and H&S requirements.
FAQs
FIND ANSWERS TO THE MOST COMMON QUESTIONS ABOUT OUR SERVICE.

EMU Professional ii
Professional MID-certified energy meter
A professional-grade energy meter with LoRaWAN connectivity, designed for accurate monitoring of single- and three-phase systems. Trusted for billing, compliance, and detailed energy audits.
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Single-phase and three-phase versions available
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Accuracy: Class 1
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Direct or CT connection options
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MID-certified for billing
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LoRaWAN communication

Knowledge Base
At Mayfair Office, a high-end multi-tenant building in London, 4D Monitoring deployed wireless temperature sensors across key zones to investigate recurring comfort complaints and high energy use.
The data revealed temperature fluctuations between floors and extended heating runtimes outside normal operating hours. By adjusting setpoints and rebalancing airflow using the live temperature data, the FM team restored stability and reduced wasted energy.
Get in Touch
REACH OUT, SHARE A QUESTION OR PROVIDE FEEDBACK ON OUR PRODUCTS. FILL OUT THE FORM AND WE’LL RESPOND AS SOON AS POSSIBLE.
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Why it matters
Power monitoring uses smart meters and sub-meters to track electricity use across circuits, floors, or individual assets. By collecting live data from mains, three-phase and single-phase systems, you can see exactly where energy is used — and wasted — in your building.
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Install
Retrofit CT clamps and sub-meters on mains boards and key assets - LoRaWAN, no rewiring, no downtime.
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Measure
Sensors stream live kW/kWh, load profiles and phase balance to secure cloud dashboards with smart alerts.
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Act
Find baseloads and out-of-hours use, catch spikes and imbalance, adjust schedules, fix faults, and allocate costs fairly.
