Every unit measures temperature and humidity, computes the heat level on board, and shows it on its own round display at the site.
There is one monitor, and it is cellular: the radio is built in, the unit reports with no store network at all, and the mobile data it uses is included with your subscription rather than billed separately. The one option you choose per unit is the globe probe. It is physical, so it is part of what that unit costs once — not something added to your subscription.
| Option | What it changes | Without it |
|---|---|---|
| WBGT globe probe | Adds radiant heat, upgrading the reading from heat index to full WBGT — the measure OSHA guidance is written in. | The unit still monitors, still alerts and still escalates, on heat index. Nothing about the safety pipeline changes. |
| Store Wi-Fi (set per store, optional) | Where a store's own network reaches the mounting point better than LTE does, the units there prefer it, with cellular behind it. | The unit reports over cellular alone — the normal case, and nothing to configure. |
There is one recurring charge, and it is your subscription. The radio is part of the hardware, once; the mobile data it uses is included for as long as the unit is on an active subscription. There is no per-unit data add-on and nothing to top up.
The display is not a convenience. It means the people in the room are warned whether or not the network, the dashboard or anyone's phone is working. Everything else in this product is remote oversight layered on top of that.
Units need continuous power. They are not battery devices — a heat monitor that switches itself off to save power is not a heat monitor.