Hukka Pisarainen Sauna ThermometerWhere ancient soapstone meets traditional steel metal, the Hukka Pisarainen Soapstone thermometer is delicately carved in the form of a droplet. The simple design of the droplet steam thermometer is excellent for many types of saunas at home or in a cottage. Gage the perfect time to enter your sauna to achieve the most enjoyable sauna experience. Suitable temperature, proper humidity and good ventilation are the essentials for your sauna experience.