For hotels and short-let properties
How smart is your building?
Every room, telling you what it's doing.
One discreet sensor per room. Temperature, air, noise, damp and occupancy — measured continuously, on one screen, for the whole building. It turns the air conditioning off when the room empties, and tells you about smoke, damp and disturbance while you can still do something about them.
Nothing in the room has a lens or a microphone recording. Guests are told it's there — a sensor you can put in the listing deters the booking you didn't want in the first place.
Temperature · Humidity · CO₂ · Air quality index · Volatile compounds · Particulates · Sound level in dBA · Peak sound · Light level · Air pressure · Occupancy · Distance to person
Twelve readings from one box on one wall.
Parties and disturbance · Smoking and vaping · Damp and failed extractors · Someone in a room that should be empty · Rapid temperature rise · More guests than the booking · Rooms not cleaned · Air conditioning that has failed · Stuffy rooms costing you reviews · Windows open with the heating on · Frost risk in empty units · Lights left burning
Switches the air conditioning and television off five minutes after a room empties, and restores them the moment anyone returns · Learns the codes from your existing remotes · Sends alerts by WhatsApp, SMS or email on thresholds you set · Keeps a timestamped history for deposit and insurance disputes
No camera and no image of any kind · No audio recorded, streamed or stored · Sound is a loudness number, so speech cannot be reconstructed from it · Presence is radar, so it works in the dark with no lens · It can tell you somebody is there, never who
Live · the real dashboard
Pick a situation. Watch the room react.
This is the actual room view, running here in the page. Every scenario below is one the sensor detects with no extra hardware — and the numbers move the way they really move.
Values are representative rather than a live feed from a real room, and drift gently between readings the way the hardware actually reports. The particulate figures assume the optional particle module is fitted. Nothing shown here is derived from audio: the sound figure is a decibel level, and presence comes from radar.
How you actually find out
Nobody watches a dashboard. So it comes to you.
A screen that has to be checked gets checked for a fortnight and then never again. Every situation below arrives on a phone instead, worded so a duty manager can act on it without opening anything.
Escalation is yours to set: which situations go to whom, at what hour, and how long a condition must hold before anybody is woken. Routine things — devices switched off, a room not cleaned — collect into a morning digest rather than pinging someone at 03:00.
Your building, your thresholds
You decide what is worth waking someone for.
A city-centre hotel and a rural cottage do not share a definition of "too loud". Every rule below is yours to set — the level, how long it has to hold, the hours it applies, and who hears about it. Change anything here and the plain-English line underneath updates with it.
Rules can be set per property, per floor or per room — a room over the bins needs a different particulate threshold to one on the top floor. Anything marked daily digest collects into one morning message instead of interrupting the night.
separate measurements from one box on one wall
cameras, audio recordings or images — of any kind, ever
between readings, which is what makes a rate of change visible
to fit one, with no cabling and no room taken out of service
The bit that pays for itself
An empty room heating itself for six hours.
Every operator knows it happens and nobody can police it. Key-card power switches were the old answer, and guests defeat them with a loyalty card in about four seconds.
Pulse has a built-in infrared emitter and learner. Point your existing remote at it once, and it can drive that unit forever after — the air conditioning, the television, anything with an infrared remote. No new air-conditioning system, no rewiring, no per-room electrician visit.
Empty for five minutes, everything off. Someone walks in, everything back. The delay is yours to set, and the rule only ever runs when the radar is certain the room is empty — which is exactly why a radar and not a motion detector.
It also learns the codes you already use, so a mixed estate of three different air-conditioning brands is not a problem.
Smoking and vaping
The £250 cleaning fee you currently never collect.
Almost every operator has a no-smoking policy and a fee attached to it. Almost none of them ever charge it, because by the time housekeeping smells the room the guest has checked out and the argument is unwinnable.
Smoking and vaping both produce a sharp, unmistakable signature: volatile compounds and airborne particulates spiking together, then decaying slowly over twenty minutes. A shower doesn't look like that. Nor does aftershave, or a takeaway.
You find out at 21:14, not at 11:00 the next morning. Which means a polite phone call while the guest is still in the building, and a fee raised against a timestamped record rather than a housekeeper's word.
Party detection
A party has a signature. Two people watching television doesn't.
A single loud noise isn't a party — it's a dropped suitcase. What matters is the pattern, and the sensor watches four things at once so you're not woken by a false alarm.
Radar reports multiple moving targets. CO₂ 1,840 ppm, rising. Notification sent to duty manager 23:47.
- Sound level — sustained above your threshold, not one spike
- Occupancy — radar sees several moving targets, not one
- CO₂ — climbs fast and hard when a room holds far more people than it was let to
- Time of night — your quiet hours, your rules
CO₂ is the one operators don't expect and end up relying on most. A room booked for two, holding fifteen, gives itself away in the air long before it gets loud — which buys you the chance to make a quiet phone call instead of arriving to a problem.
The part your guests will ask about
There is no recording, because there is nothing to record.
A microphone captures a signal you could play back. This doesn't. The sensor's acoustic chip converts sound into a sound pressure level in decibels — a single number, a few times a minute — and the number is all that ever leaves the chip.
Compare the two side by side:
Roughly 1.4 million samples every minute. Every word, every name, every argument, every phone call. Stored or streamed, it can be replayed, transcribed and subpoenaed.
- Identifiable voices
- Full conversation content
- A GDPR data-protection impact assessment, and a lawful basis you'd struggle to establish
- A guest complaint the first time somebody notices it
That is the entire acoustic record. Four numbers a minute. There is no audio buffer, no stream, no file and no cloud microphone service — because the device never produces audio in the first place.
- No voices, no words, no speaker identity
- Nothing that can be replayed, because nothing was captured
- Nothing that constitutes personal data on its own
- Something you can state plainly in your listing and your key-card wallet
The same holds for occupancy. Presence is measured by 24 GHz radar — it detects a chest rising and falling through a duvet, in complete darkness, with no lens and no image of any kind.
Intruder detection · unoccupied rooms
Nobody is booked into 214. Somebody is in it.
Every operator has rooms standing empty — taken off sale, waiting for a repair, turned over between lets, or a whole property sitting vacant for a fortnight. Nobody looks at them. That is exactly why they're the ones worth watching, and why an empty room is the easiest place in the building to detect somebody who shouldn't be there.
Tell Pulse which rooms are supposed to be empty, and presence in one of them becomes an alert rather than a reading. It works in the dark, through a closed door, and picks up someone lying still — because it's radar, not a motion detector and not a camera.
What it actually catches: a guest who checked out yesterday and came back, a key handed to somebody it shouldn't have been, a contractor in a room at 23:00, a door left on the latch, someone sleeping in a unit between lets. For a host managing a property eighty miles away, that's the difference between finding out now and finding out at the next changeover.
It's the same radar doing the same job as everywhere else on this page. You're simply inverting the question: instead of "is anyone here, so I can save energy", it's "is anyone here, because there shouldn't be".
It tells you someone is there, not who. A guest, a cleaner, a contractor and an intruder all look identical to a radar. Always read it against your bookings and your rota before you act on it — and never treat it as identification.
This is the one feature siting can ruin. 24 GHz radar reads through plasterboard. Mount a unit badly against a stud partition and it will report your neighbour's room as an intrusion. Gate the detection distance at commissioning; it takes a minute per room and it is not optional for this use.
It is not a security system. Pulse isn't a graded intruder alarm, it doesn't summon anybody, and it isn't monitored. It's an alert to your phone. Also worth knowing: if you point it at staff movements rather than empty rooms, that becomes employee monitoring under UK GDPR and needs an assessment first.
Five rooms behaving. One that isn't. The board only ever asks you to look at the exception — which is the only way a hundred rooms stays manageable.
Rate of temperature rise
A room getting hot fast, in a building where nobody is looking.
A smoke alarm waits for smoke to reach the ceiling and enter the chamber. Temperature starts moving earlier — and Pulse reads the room every three seconds, so it sees the gradient, not just the value.
A room climbing 6 °C in four minutes with nobody in it is not a warm afternoon. Neither is a vacant room at 2 am rising steadily. You get told, with a room number, while it is still a question rather than an evacuation.
The practical value is in the rooms nobody enters for days: out-of-service rooms, plant cupboards, void units between lets, a laundry room with a tumble dryer in it.
What it is: a supplementary operational alert that may reach you before a certified system triggers. Treat it as extra warning on top of a compliant system — never as a reason to fit fewer alarms.
Damp and water damage
The leak you find in August started in March.
The expensive water damage in a let property is almost never the dramatic kind. It's the slow kind — an extractor fan that stopped working, a shower seal that went, a pipe weeping inside a wall — quietly turning a room into a mould problem across a whole season.
Pulse watches humidity and temperature continuously and tells you when a room stops drying out. A bathroom that hits 85% after a shower is normal. A bedroom sitting above 70% for three days in a row is not, and it will be a redecoration bill by the autumn.
You get told in March. A £40 fan, instead of a stripped wall, a replastering job and three weeks of a room you can't sell.
Nine more things the same box tells you
Most of these only became obvious once operators had one running.
None of them needs extra hardware. They fall out of measurements the sensor is taking anyway.
A real clean has a signature: someone in the room for twenty minutes, dust lifted into the air, cleaning products in the volatile reading. No signature between two bookings means nobody cleaned it. If you manage remotely and pay a cleaner you never see, this one alone justifies the sensor.
Pulse commands the unit and then watches whether the room actually responds. Cooling called for, temperature flat for thirty minutes — the unit is broken. You know on Tuesday instead of finding out through a Saturday complaint and a refunded night.
Humidity spikes after a shower and then doesn't come back down. The fan has died, months before the damp shows on a wall.
A vacant unit dropping towards freezing in January. The cheapest water damage is the kind that never happens.
Heating running hard while the room refuses to warm. Money leaving through a sash window.
Light level high, nobody present, for hours. Small money on one room, real money across a hundred.
Housekeeping stops knocking on occupied doors. Rooms get turned in the order they're actually available.
A room let to two, slept in by six. The air says so within an hour, long before the party rule would ever fire.
Across a hundred rooms, patterns surface that no individual complaint reveals: the four rooms that never get below 24 °C in summer, the two beside the lift that run 8 dBA louder all night, the one that sits at 68% humidity year-round. That's a capital plan built on measurements rather than on which guest shouted loudest.
A sealed room with two people in it climbs past 1,500 ppm by 3 am. Guests rarely blame the air — they write "didn't sleep well" and give you four stars. Ventilate on a threshold and the complaint stops arriving.
One device
Twelve measurements, updated every few seconds.
No camera. No microphone recording. Nothing with a lens and nothing with a memory of anyone's voice.
Loudness only. The measurement your party rule runs on, and the one that cannot be turned back into speech.
Detects a still, breathing person in the dark. No lens, no image.
Tells a person in the room from movement in the corridor.
Comfort complaints, and frost risk in an empty property.
The damp early-warning trace. Your most valuable long-run reading.
How many people are really in the room, and whether the ventilation is coping. Rises fast during an overcrowded party and stays flat during a quiet evening.
A single overall figure for how the room's air is doing.
Aerosols, solvents, cleaning products — and stale, unaired rooms.
Smoke and dust, on units fitted with the particle module.
Lights left burning in a room nobody is in.
Weather context for the heating and cooling logic.
Separates one slammed door from a sustained disturbance.
Controls the air conditioning and television you already own, and learns their codes from your existing remote in one pass.
What the status quo costs
Put your own numbers in. We haven't guessed for you.
Every figure below is your own arithmetic on your own estate — no industry averages, no survey nobody can find. Change anything you disagree with.
Assumptions you can check: energy = rooms × occupancy × wasted hours × load in kW × price per kWh × 365. Lost revenue = incidents × nights out of service × nightly rate. Nothing is discounted, marked up or annualised in a way that flatters us. All figures in £ GBP, dates dd/mm/yyyy.
Practical detail
Fits a building you already run.
Installing it
- One unit per room, wall or ceiling
- Standard USB-C power — no rewiring
- Joins your existing Wi-Fi
- Under ten minutes a room
- No cabling, no builder, no room out of service
Running it
- One dashboard, every room on it
- Alerts to phone, email or your existing system
- Thresholds and quiet hours set per property
- Full history for deposit and insurance claims
- Data stays on your own server if you want it to
Telling guests
- Declare it in the listing — it deters bad bookings
- No camera and no audio recording to disclose
- Meets platform rules on indoor devices
- Wording supplied for listings and key-card wallets
- Nothing you'd be uncomfortable explaining at check-in
Availability
Coming soon.
Pulse is in final testing ahead of its first hundred-room rollout. Leave your details and we'll be in touch when units are available — with a live dashboard, a walk through exactly what is and isn't captured, and a rollout costed against the numbers you put in above.