Meeting-room status

The state of the room,
in one light.

A 130-millimetre disc on the meeting-room glass. Green, red, amber — legible from the far end of the corridor, long before you are close enough to read anything. Driven by the room’s own calendar.

Book a demo meeting Read the specification

130 mmacross
3states
30 mlegible

The isbusy sign lit green in a dark studio — a black disc with a glowing ring around its rim.

01 — The problem

Nobody reads a screen from thirty metres.

A booking panel is a document. You have to be standing at the door to use it, and by then you have already opened it to find out that you should not have opened it.

A light is not a document. It is a signal. It answers the only question anyone walking down that corridor is actually asking — can I go in — at the distance where the answer still changes what you do.

The sign glowing red on the meeting-room glass, the room dark behind it. — Red, from outside, before the handle.

Colour is the fastest thing the eye does. It arrives before shape, before text, before you have decided to look.

A visualisation of an office corridor with signs beside each meeting-room door, the nearest one lit green. — Visualisation, not a photograph

The same corridor visualisation with the nearest sign lit red, and a mix of red and green further down. — Visualisation, not a photograph

02 — The three states

Three answers. No reading.

The ring reads as a row of discrete points rather than a flat band. That is deliberate. It is what makes it legible at an angle, through glass, at the end of a corridor.

The sign lit green — Nobody is in there. Walk in.

Nobody is in there. Walk in.

The calendar shows no booking and the room is unclaimed. Visible as green from roughly thirty metres of corridor.

03 — How it works

It follows the room’s calendar.

The whole point is that nobody has to remember to do anything. The sign is downstream of the booking you already made.

Connect the calendar

We wire isbusy into the calendar system you already run — Google Workspace or Microsoft 365. Rooms map to signs once, on day one, and then nobody thinks about it again.

Bookings become light

A meeting starts and the ring goes red. It ends and the ring goes green. A booking nobody turned up for goes amber instead of lying to the corridor. No app to open, no panel to tap, no habit for anyone to form.

Or drive it yourself

Every sign answers a plain HTTP request on your own network. A door sensor, a Slack command, a studio recording light, a booking system we have never heard of — if it can make a request, it can drive the light.

The whole interface

# set a room
curl "http://isbusy.local/api/state?state=busy"

# ask one
curl "http://isbusy.local/api/status"
{ "state": "busy", "rssi": -52, "uptime": 918442 }

No cloud account in the path, no per-seat licence, no vendor tenant sitting between your calendar and your corridor. The sign is a device on your network that answers requests.

The sign mounted on meeting-room glass, glowing green, the room dark behind it.

04 — In place

It hangs on the glass.

Two suction cups drop into keyhole slots in the back and lock as the sign slides down; gravity does the rest. No drilling, no adhesive on a partition you are renting, no facilities ticket. If you would rather it never came off, the back is flat enough for a ring of VHB.

Move a room, move a sign. Reorganise the floor on a Friday and the signage follows on the same afternoon.

A visualisation of an office floor: signs beside a row of meeting rooms receding into the distance, all lit red, with a meeting under way behind the nearest glass wall. — Visualisation, not a photograph

05 — Made, not sourced

One unbroken face, a body we make ourselves.

We design and build every sign ourselves, here in Türkiye. Nothing about it is a white-label box with a badge on it.

The sign apart: transparent cover, black body with the lit ring channel, four countersunk screws and two suction cups.

Two parts, four screws

A black body that traps the light everywhere except the rim, and a clear cover over the ring. Nothing else is on show.

The flat back face of the sign, showing two suction-cup keyholes and four flush countersunk screw heads.

Nothing on the front

Every screw enters from behind and sits flush, so the face you look at is an unbroken disc. The back is flat enough to take a ring of VHB instead of the cups.

06 — In daylight

Product Photographs

The sign standing on a pine desk against a grey wall, its ring lit green in daylight.

The sign photographed head on, the ring lit red, the face an unbroken disc.

Close view along the rim of the sign, green light spilling out of the channel between cover and body.

The sign lying face up on a desk, lit red, showing how little it stands off the surface.

The back of the sign photographed on a desk: a flat black disc with two suction-cup keyholes and four flush screw heads.

07 — Numbers

Everything you need before you order.

Size, light, network, power, mounting. Written for the person who has to hang it and the person who has to sign for it — including the parts that are not flattering.

Full specification →