01
Place
Discreet, battery-powered sensors are installed across representative zones — desks, meeting rooms, lobbies, and circulation areas.
02
See
Data is streamed into live comfort maps and trend views, showing conditions by floor, tenant, or room in real time.
03
Tune
Clear rules and alerts flag when spaces drift out of range, guiding teams on which setpoints, airflow, or schedules to adjust. Over time, this enables seasonal fine-tuning and continuous improvement.
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Why it matters
Comfort and indoor air quality aren’t just about avoiding complaints — they directly affect health, wellbeing, and efficiency. High humidity can lead to damp and mould, while poor ventilation causes CO₂ to build up, making occupants tired and unproductive. By monitoring temperature, humidity, CO₂ and light continuously, landlords and FM teams gain early warnings of risks, protect tenants’ health, maintain stable environments, and prove compliance with growing regulations — all while reducing unnecessary energy use.
02
Problems We Solve
Hot/cold spots across open-plan floors that drive complaints.
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Stale air and rising CO₂ in busy rooms that reduce comfort and productivity.
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Over-ventilation and drafts in quiet areas that waste energy.
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Excess humidity that increases risk of damp and mould.
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Ad-hoc changes to setpoints that destabilise comfort across floors.
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Lack of visibility at room level, leaving teams unsure where to adjust.
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Our Go-To Sensors
Environmental sensors keep workplaces consistent and safe, with data to prove it.
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ELSYS ERS C02
Temperature, humidity, motion & CO₂ for indoor air quality
Rotating equipment like pumps, motors, and fans almost always shows signs of wear through vibration long before breaking down. By tracking vibration and temperature in real time, we help facilities managers switch from reactive call-outs to predictive maintenance.
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Measures RMS velocity, acceleration, and displacement
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Frequency range: 10–10,000 Hz
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Temperature range: -20°C to +85°C
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IP66/IP67 industrial-grade housing
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Battery life up to 2 years
Milesight VS350
Footfall to match ventilation & cleaning to real use
An intelligent footfall sensor that counts people accurately using AI and dual-lens technology. Ideal for entrances, lobbies, and shared spaces, it shows how areas are really used without capturing personal data.
An intelligent footfall sensor that counts people accurately using AI and dual-lens technology. Ideal for entrances, lobbies, and shared spaces, it shows how areas are really used without capturing personal data.
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Dual-lens AI people counting
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Accuracy up to 98%
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Coverage: up to 5 m width
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Privacy-friendly (non-image data only)
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Mounting height: 2.3–4 m
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.
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
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