Every wasted watt is money you're leaving on the table

Holio's sensor platform gives your property real-time control over heating and cooling, automatically, room by room, based on actual occupancy.

Open window + rain = instant front desk alert

A window left open during rain means wet floors, damaged furniture and a guest complaint waiting to happen. Holio's window sensor detects both the open window and rain simultaneously and instantly notifies your front office so staff can act before the guest even notices.

  • Detects open/closed state of every window in real time
  • Integrated rain sensor triggers front desk notification instantly
  • Heating and airco pause automatically when window is open
  • All events logged to your dashboard with timestamps
  • Battery-powered and wireless, no rewiring needed
Saves up to 12% energy
Wireless install
Works with all window types
Window & Rain Alert Live
Rain detected: window open
Room 304 · 14:23 today
Action needed
Front office notified · Heating paused automatically
Recent events
Room 201: window closed 13:45
Room 304: heating resumed 14:31
Room 112: window opened 14:58

Heat rooms for guests, not for empty beds

Holio connects directly to your PMS. The moment a reservation is confirmed, Holio knows exactly when to start pre-heating a room, and when to let it cool down after checkout. No manual scheduling, no wasted heating overnight.

  • Pre-heat room automatically before guest arrival time
  • Switch to eco standby on checkout, instantly
  • Frost protection prevents pipe damage in winter
  • Set temperature profiles per room type or season
  • TRV (thermostatic radiator valve) compatible, easy retrofit
Saves up to 18% energy
PMS-synced
Frost protection included
Radiator Control: Floor 2 Live
Room 204
Check-in 15:00 · pre-heating
17°C
▲ pre-heating
Room 206
Occupied · stay until 12/06
21°C
✓ occupied
Room 208
Vacant · next check-in tomorrow
15°C
⏸ standby
Room 210
Checked out 11:00
15°C
⏸ standby
Saving est. today: 4.20

Cooling only when someone's actually there

Air conditioning in an empty room is pure waste. Holio uses your PMS data and optional occupancy sensors to turn airco off the moment a room is empty, and get it to the right temperature before the guest walks in.

  • Occupancy-based on/off: no guests, no cooling
  • Pre-cool room based on check-in time from PMS
  • Set max cooling limits per room or property
  • Compatible with most split-unit and ducted systems via IR or smart thermostat
  • Guest comfort protected: never too hot on arrival
Saves up to 20% on cooling
IR & smart thermostat
PMS-synced scheduling
Airco Status: Floor 2 Live
Room 201: Occupied
22°C
Cooling active
Room 202: Empty
28°C
⏸ Airco off
Room 203: Pre-cooling
25°C
Check-in 16:00
Room 204: Empty
27°C
⏸ Airco off
3 units off · saving approx. 2.80 today

Full visibility across your entire property

One dashboard for every room, every sensor, every saving. Real-time and historical, so you always know what's happening and what it's worth.

Real-time room overview

See the current temperature, status and energy mode of every room at a glance: occupied, pre-heating, standby or off.

Savings tracker

Daily, weekly and monthly savings in euros and m³ gas. See exactly how much Holio is putting back in your pocket.

Alerts & notifications

Rain alerts, open windows and sensor issues, all pushed directly to your front office team in real time.

Multi-property management

Manage multiple hotels or parks from a single login. Compare performance across properties.

Historical reporting

Export energy reports monthly or yearly. Perfect for sustainability reporting and cost benchmarking.

Device health monitoring

Automatic alerts when a sensor battery is low or a device goes offline. 99.9% uptime, proactively maintained.

See Holio in your property

Book a 30-minute demo and we'll show you exactly how much you could save, based on your property's size and occupancy.