01 / WorkCheck

Are they ready to work safely?

Every door has a rule about who belongs and what they wear. WorkCheck checks it at the door, and proves it was checked. It knows what you are wearing, not who you are.

02 / Why

The problem

When someone gets hurt at work, the injury is just the start. The line stops. OSHA shows up. The union gets involved. The insurer and workers' comp start assigning blame. Premiums go up. Lawyers get hired.

In every one of those fights, the same question comes up: can you prove your safety rules were enforced that day? Almost nobody can. The moment a worker walks through the door is checked by eye and written down nowhere.

Work injuries cost U.S. employers $181 billion in 2024. A big share of the fights afterward come down to that missing record.

03 / What

What we built

WorkCheck is a small box at the door. It checks each worker's PPE and uniform in about a second and says CLEAR, WAIT, or STOP. Then it logs what it saw in a record that cannot be quietly edited later.

There is also a free iPhone app that does the same check from a supervisor's pocket. It is on TestFlight now.

We do not claim to stop accidents. We give the company proof that it enforced its rules, every shift, before anyone asks.

04 / How

How it works

WorkCheck is set up with your own rules for your own doors, and it uses those rules to make every call.

1 · Give it the house rules

Upload your PPE policy, your uniform standard, or your gowning procedure. Walk a few people through the door in the right gear. WorkCheck turns the policy into rules for that door and learns what your gear looks like. It learns your hard hat and your vest, not a generic one.

2 · It checks everyone at the door

Each person gets a verdict in under a second. CLEAR, WAIT, or STOP. The decision is made on the unit at the door. No video leaves the site. No faces, no names.

3 · It keeps the record

Every verdict is written to a tamper-evident log on the unit. Headcount by role. Verdicts by hour. Who is inside right now. When there is an audit, an insurance claim, or a pay dispute, you have proof instead of a memory.

Everything runs on the device, with no internet needed. If the internet never shows up, the record still leaves: a tech’s laptop, or a truck making the rounds, pulls whatever is new over a short link, and the box writes down who took it and when. It never stores a picture of a person.

Hardware is $1,499 per unit. Software is $99 per gate per month.

05 / The real stuff

Real frames from the gate

These are not renders. Every frame came off a working checkpoint on 12 August, unedited. The boxes are what the model saw and the label is what the gate decided.

Full kit, cleared
CLEARFull kitHard hat 94%, hi-vis vest 84%. Cleared.
Missing hard hat, stopped
STOPMissing hard hatVest 73%. No hard hat 92%. It says what is missing.
Missing vest, stopped
STOPMissing vestHard hat 95%. No vest 79%.
Not a vest, stopped
STOPNot a vestA yellow jersey is not hi-vis. No vest 74%.
Supervisor, wait
WAITSupervisorConflicting signal. Routed to a person, and the override is kept.

Five verdict states · one checkpoint · one session

06 / The unit

What goes at the door

One box, one mount, one cable. Two cameras for color and depth, a small screen that shows the verdict, and a status light you can read from across the yard. It runs on its own; the network is for the record, not the decision.

Sensor12MP RGB · stereo depth
ComputeDedicated vision processor · inference on the unit
DetectorPPE vision model · 640×640 · FP16
RulesetsPPE · uniform · extensible per site
VerdictCLEAR / WAIT / STOP in about a second
NetworkWorks offline · syncs the record when it can
PrivacyVerdicts leave. Footage doesn't.
IntegrationOpen events · CSV · PDF · no lock-in
Price$1,499 per unit · $99 per gate per month
WorkCheck gate unit
Fig. 01 · Gate unit
Exploded view of the unit
Fig. 02 · Inside
Unit at a site gate with a supervisor
Fig. 03 · At the gate
Verdict screen close up
Fig. 04 · The verdict

Renders of the production design. Working units today are the same electronics in a field housing.