Rento Sauna Thermometer/Hygrometer, Tar - Finnish Sauna Accessories

A combined thermometer-hygrometer for the sauna by Rento (Finland), in tar-colored (dark brown) aluminum. Reads temperature in Celsius and relative humidity as a percentage.

Why both: knowing the temp AND the humidity lets you balance dry heat against löyly properly. Most owners just guess; this small gauge gets you closer to consistent sessions.

Mounting: included screw-fixing. Mount on the opposite wall from the stove, high but not at ceiling.

Material: aluminum case, glass face. Aluminum is corrosion-resistant in steam and stays cool to the touch.