Laser-lab safety & exposure logging

Know your lab is safe - and prove it.

A smart entrance sign, a hardware interlock and a cloud that quietly logs every laser exposure. Clear status at the door, real protection inside, and the records safety legislation requires - automatically.

Live demo - opens the real entrance sign in your browser.

Northwind Photonics · Femtosecond Lab Interlock 192.168.0.61
Femtosecond Lab
OFF
Safe to Enter
No laser in use
On the door

Unmistakable, from the hallway

Calm green when the lab is safe - bold red and impossible to miss the moment a laser fires. The same display, automatically.

Beam Sentinel entrance display reading Safe to Enter outside a laser lab
Safe - no laser in use
Beam Sentinel entrance display reading Laser in Use outside an active laser lab
Laser in use - do not enter
Why Beam Sentinel

Three things every laser lab needs

One device at the door takes care of safety, awareness and compliance - without changing how people work.

More safety

A hardware interlock mirrors the live laser state and drives your laser's interlock loop. It fails safe on signal loss and shows unmissable warnings at the door.

Live lab status

See at a glance - at the door or remotely - whether the laser is on, who is inside, which wavelength is in use, and whether the interlock is connected.

Legislation-ready data

Every exposure is logged automatically - who, which laser, when, how long, at what wavelength. Append-only and exportable as CSV for your safety records.

How it works

From the door to your records

Entrance sign

Shows status & logs each exposure.

Cloud

Stores append-only records per lab.

Interlock + admin

Relay protects; admins review.

See it

The whole picture, in three screens

The entrance display, the admin dashboard, and a little friendly competition.

beamsentinel · entrance sign

The entrance sign

A glanceable display at the lab door. Green when safe, red and impossible to miss when a laser is in use - with the wavelength, entry policy, who's inside, and the interlock's live status.

▶ Open the live sign
Northwind Photonics · Femtosecond Lab
Laser
In Use
Ti:Sapphire 800 nm
800 nm NIREye protectionOperator insideClass 4
beamsentinel · org admin

The admin dashboard

Every exposure rolls up into live insights - sessions, total laser time, busiest operators and lasers - plus a real-time map of every lab, sign and interlock. Filter the full log and export it as CSV.

Beam Sentinel admin exposure-insights dashboard: stat cards, laser-time-per-day chart, top operators and lasers, and the exposure log Beam Sentinel admin lab status and live device map of labs, signs and interlocks
Open the admin app →
beamsentinel · lab master

Lab Master 🏆

The exposure data does double duty: a friendly leaderboard of the lab's busiest scientists, by total laser time. A little fun on top of the safety records.

LAB MASTER
🥈
M. Okafor
31h 25m · 22×
2
🎩
🥇
Dr. Lena Hart
42h 10m · 28×
1
🥉
S. Ricci
27h 50m · 19×
3
Everything included

Built for real labs

Hardware interlock

Wire your laser's interlock loop through the relay.

QR pairing

Scan a code; the lab admin assigns it in seconds.

Fail-safe

Cuts the interlock if the signal is lost - or holds, your choice.

CSV export

Filter by lab, operator or date and download.

Append-only log

Records can't be edited or deleted at the kiosk.

Multi-lab

One organization, many labs and signs.

Wavelength logging

Color-coded by band, recorded with each exposure.

Roles & access

Org admins manage their labs; you manage the platform.

See a lab go safe in one click

Open the live entrance sign, flip the laser on and off, and watch the status change - then explore the admin app.