TempZone control
Pick a target and a mode (cool, heat, auto or off) for each area. The dial shows the target and the current reading together.
For shops, gyms and work floors
Perfect temperature. Automatically.
Work spaces get hot where people move and cold where they don’t. TempWise gives every zone its own target and schedule, shows what each sensor reads right now, and warns you before a room gets uncomfortable.
- Weekly schedules and scenes
- Works offline, installs as an app
- Free and open source (MIT)
Gym floorSensor 01 · try it
CoolingTarget
21.0°C
Now 24.4°C
Cooling to target
Simulated. Nothing is sent anywhere.
Where TempWise fits
Gyms
Bodies add heat fast. Keep the floor cool without freezing the front desk.
Shops and workshops
Tools, wood and paint care about humidity as much as people care about heat.
Loading bays and labor areas
Doors open all day. Know which zone is drifting before the crew feels it.
What it does
Everything a zone needs, nothing it doesn’t.
Sensors and trends
Temperature, humidity and a trend line for every sensor, plus a clear flag when one goes offline.
One-tap scenes
Comfort, Busy, Eco and All off. One tap sets every zone, and the active scene lights up.
Weekly schedule
Set opening hours for each day. Outside them, Eco relaxes targets. Pre-cooling gets rooms ready before you open.
Alerts you set
Choose a high-temperature limit and a humidity limit. Turn each alert type on or off on its own.
Activity log
See every alert and every change, and which window made it. Nothing changes without a record.
Live sync
Change a setting in one window and every other open window updates within a second, with a note about what changed.
Local mode
Try a different temperature in one window without touching the thermostat or anyone else’s screen. Keep it or throw it away.
Your data, offline
Export settings and readings, import them back, install TempWise as an app and keep using it without a connection.
Local mode
Try it first. Change nothing.
Switch on Local mode and every change you make stays in your window. The thermostat keeps holding the synced value, other screens don’t move, and anything you changed is tagged Local.
When you like what you see, Sync to all devices makes it real. If you don’t, Discard puts everything back.
How it works
Three steps, then leave it alone.
Put a sensor in each zone
Name the zone the way your crew does: Gym floor, Workshop, Loading bay. Add or rename zones any time.
Set a target, a mode and your hours
Use the dial or the plus and minus buttons, then enter opening hours for each day of the week.
Let it hold, and read the alerts
TempWise keeps each zone near target, relaxes it when you’re closed, and shows anything that needs attention on the home screen.
Screens
Made to read at arm’s length.
Questions
Good to know
Is this connected to real thermostats?
No. This site and the demo app show how TempWise works. Sensor readings are simulated so you can try every screen. The code is organized so you can connect your own sensors and controllers.
Does it sync between my phone and my computer?
In the demo, settings sync between every open tab and window in the same browser. To sync separate devices, point js/sync.js at a backend such as Firebase or Supabase. The README shows how.
Where is my data stored?
In your browser’s local storage, on your device only. Use Reset demo data in the Account screen to clear it, or export your settings first to keep a copy.
Does it work offline?
Yes. After the first visit, the site and the app load without a connection. Fonts and scripts are bundled.
Can I install it?
Yes. In Chrome, Edge and most Android browsers, use the install option in the address bar or menu. On iPhone, use Share, then Add to Home Screen. The Account screen shows an Install button when your browser offers one.
Can I use it for my own project?
Yes. It is released under the MIT License. Fork it, change the zones and colors, and publish it on GitHub Pages.