Silicone Cover Ice Bath Thermometer with Timer, Waterproof Floating Water Thermometer for Cold Plunge (Black) Review (2026)

Who this thermometer is for

This unit fits cold plungers who want temperature and timing handled by a single floating device rather than juggling a phone for the countdown and a separate thermometer for the reading. Because it switches between Celsius and Fahrenheit, it works for users on either measurement standard without needing a different model. The silicone-covered housing and buoyant design suit anyone who plunges near a tub edge where a dropped device could otherwise crack. It is a reasonable fit for someone building out a home cold plunge setup on a budget, though buyers who want a thermometer from an established, long-running brand with a longer track record may prefer a pricier alternative.

Build, waterproofing and power

The thermometer is sold under the brand Suoimk as model DTH and measures about 2.8 inches, small enough to float freely without adding much bulk to the tub. It carries an IPX6 waterproof rating, which covers exposure to powerful water jets and splashing rather than full submersion depth ratings, and the silicone outer layer adds anti-slip grip along with extra drop resistance if it gets knocked against a hard edge. It runs on a single CR2032 battery, which is included in the box, and the maker recommends hand washing only rather than running it through a dishwasher or soaking it in cleaning solutions.

Timer and display in use

The built-in timer tracks sessions up to 20 minutes with single-touch operation, which covers the great majority of cold plunge protocols without needing a phone nearby. Temperature readings are described as updating in real time, with the display designed to stay legible indoors, outdoors, or partly underwater rather than washing out in direct sunlight. Because the unit floats and stays buoyant in both ice baths and hot tubs, the same thermometer can pull double duty for contrast therapy setups that alternate between cold and hot water, checking both the chill and the timer from one poolside device.

Trade-offs against other ice bath thermometers

Compared with rivals in the same accessories category, this model sits in the middle of the pack: it includes the timer function that a basic float-only thermometer skips, while carrying the same general uncertainty as any newer, smaller Amazon brand around long-term seal integrity and battery life. Buyers considering a dedicated brand-name option like ThermoPro's floating pool thermometer are trading some price for a maker with a longer track record in temperature instruments specifically, rather than a brand built mainly around cold plunge accessories. For most home plungers, the practical difference comes down to how many years of daily use the unit needs to survive.

Verdict

This thermometer covers the two things most cold plungers actually check each session, temperature and elapsed time, in one floating, silicone-wrapped unit that includes its battery out of the box. It is a solid pick for anyone assembling a home ice bath setup who wants a built-in timer without paying for a premium, well-known brand name. The main open question is how the electronics and seal hold up after months of repeated cold exposure, since the brand has less history than established thermometer makers. Choose it if you want timer and temperature combined at a reasonable price, and hand wash it rather than submerging it in cleaning solution to protect the seal.

Frequently asked questions