SenseStack is operational readiness infrastructure for commercial saunas. It validates heat-up time, confirms operating temperature, and tells operators when their sauna is ready for guests.

How does SenseStack know when a sauna is ready?

SenseStack uses a high-temperature probe mounted externally to the sauna to record heat-up curves and measure when the sauna reaches its optimal operating temperature range.

Who is SenseStack for?

SenseStack is built for commercial sauna operators — gyms, wellness centres, hotels, and spas who need to ensure their saunas are consistently ready and at operating temperature before guests arrive.

How much does SenseStack cost?

Pilot access is €120 per monitored sauna for a 30-day operational readiness validation phase. This is credited toward ongoing subscription if you continue after the pilot.

Where is SenseStack available?

SenseStack is currently piloting with commercial sauna operators in Ireland. Apply for founding access to join the pilot programme.

Hardware

The SenseStack Base Device

One sealed unit beside the door. It reads the cabin, watches door events and shows a single readiness state your team can trust — indoors, outdoors, steam or spray.

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SenseStack Base Device: circular sealed unit with brushed alloy face plate and cable gland — Base Device, face plate up — engraved SenseStack mark, sealed gland for the probe lead.

SenseStack Base Device surface-mounted on a timber sauna wall beside the door, with probe and door sensor cabling routed down the frame — Installed on a live Irish pilot site — surface-mounted on the cabin wall beside the door, cabling routed down to the frame.

Installed in under 30 minutes

Two screws into the frame, the temperature probe inserted through an 8 mm hole drilled at head height inside the cabin, the door reed sensor mounted on the edge of the door frame, and a low-voltage power lead. Nothing is spliced into your heater, controller or plumbing — so nothing about your warranty or certification changes.

Surface mount, no cabinet cut-outs
Probe inserted through an 8 mm hole at head height, reading what guests feel
Door reed sensor fixed to the door frame with silicone and screws if needed
Founder-installed on every Irish pilot site

What it does

Probe-accurate readings

The sealed high-temperature probe is inserted through an 8 mm drilled hole at head height in the cabin, so readiness reflects the temperature guests actually experience on the bench.

Readiness at a glance

The circular face shows one state: Heating, Ready, Recovering or Attention. Staff read it from across the deck.

Resilient connectivity

Wi-Fi with on-device buffering. If the link drops, readings queue locally and sync when it returns.

Battery fallback

Short power interruptions don't create data gaps or false offline alarms.

Simple install

Surface-mounted beside the door, with the door reed sensor fixed to the edge of the door frame using silicone and screws where needed. No heater rewiring, no plumbing.

Built for the environment

Rated for steam, splash, cold plunge spray and outdoor Irish weather.

At a glance

Form factor: Circular puck, ~95 mm diameter
Enclosure: Sealed polymer body, brushed alloy face plate
Mounting: Two-screw surface mount, wall or frame
Connectivity: Wi-Fi 2.4 GHz, local buffering on dropout
Power: Low-voltage mains adapter with battery fallback
Sensing: Temperature probe through an 8 mm hole at head height + door reed sensor on the door frame
Display: 240 x 240 circular readiness ring
Install time: Under 30 minutes, no plumbing or heater rewiring

Pilot hardware specification. Final production figures are confirmed at install.

Know your environment

Pilot installs are running across the Republic of Ireland, fitted in person.

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