Floating Digital Thermometer
The Tempest comes with a built-in temperature display. This gives every other cold plunge the same precision — and adds a quick surface-level confirmation for Tempest owners who want it.
Drop In.Read. Enter.
A simple, accurate floating thermometer for every cold plunge setup. For Tempest owners, it's a convenient secondary read. Drop it in, confirm your water temperature at a glance before you enter. For every other cold plunge, it's the precision instrument your setup needs.
Why it's worth
every dollar.
Drop it in and read the temperature before you enter. No waiting, no guessing. An accurate reading in the time it takes to step up to the tub.
Positive buoyancy keeps the display face-up at water level. Drop it in, read it, pick it up. No fishing around the bottom of the tub.
Rated for full submersion. Leave it in during your session, use it across hundreds of plunges. ABS body with rubber overmold. Built for daily cold plunge use.
Shows temperature and elapsed time simultaneously. One less device to manage. Pair with The Anchor for a fully instrumented plunge setup.
Tempest owners have a built-in display. This gives you a quick secondary reference at water level before you step in. For every other cold plunge, it fills that gap entirely.
Switch between Fahrenheit and Celsius with the Mode button. All Frost Forged protocols reference °F.
Build Around
the System.
Accessories are built around The Tempest and Tempest Pro. If you haven't invested in your primary unit yet — that's where it starts.