Your best friend for on-board comfort, the thermo-hygrometer
On a boat, humidity constantly changes due to seawater vapor, rain, and condensation. This is precisely why a comfort meter is so useful. This instrument combines a thermometer and hygrometer with a clear comfort zone indicator, allowing you to see at a glance whether the climate in the cabin or living space is pleasant.
At Studio Maritime, you will find comfortable and stylishly designed comfort meters that are not only practical to use but also fit beautifully into a maritime interior. If you prefer a separate thermometer or hygrometer for a more specific measurement, you will, of course, also find those in our collection.
A good indoor climate helps prevent mold and moisture problems and contributes to more comfort on board and at home. This way, you always have a better view of temperature and humidity, precisely where it matters.
35 products
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35 products
Endurance II thermometer - maritime thermometer with porthole opening 120 x 54 mm
$213.00
The Weems & Plath Endurance II thermometer combines style and precision in one elegant instrument. Featuring a bimetallic mechanism, the thermometer accurately displays temperatures in both Celsius (-20°C to 50°C) and Fahrenheit (14°F to 122°F). Each thermometer is carefully adjusted and calibrated in a temperature-controlled environment for reliable performance. Its maintenance-free, ultra-hard surface and weatherproof properties make this thermometer ideal for use at sea, on board, or at home. The polished glass and classic porthole display add maritime charm. Available for wall mounting or with an optional wooden stand in mahogany or black, the thermometer complements the other instruments in the Endurance II series. With a lifetime warranty on the finish and mechanism, this thermometer is a timeless and reliable instrument for any nautical enthusiast.
Compact climate control from Weems & Plath, with this thermometer and hygrometer in one. This smart combination allows you to monitor temperature and humidity at a glance. Ideal for on board or at home to prevent moisture problems and maintain a comfortable indoor climate. The generous white dial with black indices clearly displays both measurements. On the left side, the temperature in Fahrenheit and Celsius, and on the right side, the relative humidity in percentage. The scale immediately highlights the ideal "comfort zone" for a healthy and pleasant living environment. Compact, practical, and stylish—85 mm dial, 105 mm case, 38 mm height. Or medium-sized: 125 mm dial, 152 mm case, 41 mm height. Choose from brass or chrome-plated brass—either a must-have for any space where precision and comfort meet.
Autonautic Baltic 110 hygrometer - black, lightweight, outdoor (110 x 40 mm)
$132.00
Reliability in a compact design—that's the Autonautic Baltic 110 outdoor hygrometer. A lightweight and durable instrument, perfect for racing sailors and adventurers. With a robust polyamide housing and accurate humidity measurements from 0% to 100%, this hygrometer offers reliable performance, regardless of the conditions. Its lightweight design makes it easy to hang, and its versatility makes it suitable for both racing yachts and pleasure boats. Furthermore, its sleek, rugged design combines an instrument suitable for both indoor and outdoor use. Resistant to the toughest conditions and consistent in performance, the Baltic 110 is a must-have accessory for anyone who values precision, durability, and style.
Autonautic Instrumental Minor thermometer 72×39 mm – 4 variants, compact, lightweight
$99.00
Quickly check if it feels cool in the cockpit, or if it's getting a bit stuffy inside? The Autonautic Instrumental Minor thermometer gives you the temperature at a glance, in a compact 72x39 mm format that fits neatly at the helm, in the cabin, or in the cockpit.
What you get out of it (especially on board):
- Easy to read thanks to the high-contrast dial, even if you only glance at it for a short time.
- Reliable measurement in Celsius thanks to the bimetal mechanism, within -20 to +60°C .
- Small and charming : a beautiful maritime detail without it becoming cluttered on your wall or console.
- Four variants : matte black, chrome, gold plated (18 carat gold flash) or chrome with black dial for a more robust look.
It also performs well outside the boat: in your camper, vacation home, home office, or even a living room where comfort is just as important. And practical: a quick wipe with a soft cloth is usually enough to keep it clean, something we appreciate even with instruments you see every day. Combine it with the other instruments from the same series: the clock, the barometer and the hygrometer, a nice set of four, so that you have an overview of the time and indoor climate at a glance.
Autonautic Instrumental Minor hygrometer 72 x 39 mm – 4 variants, small, stylish, precise
$99.00
Sometimes you can sense it right away: it's just a little bit humid in the cabin, or too dry in the holiday home. With the Autonautic Instrumental Minor hygrometer, you can see the humidity at a glance, so you can quickly decide whether to open a window, turn down the heating, or simply ventilate.
This hygrometer is conveniently compact (72x39 mm) , making it perfect for places where you don't want to sacrifice space: at the helm, in the cabin, or in a caravan or camper. The 50 mm dial, on the other hand, is nice and clear, so you don't have to squint. The mineral glass protects the dial well during daily use, and the aluminum casing is available in matte black, chrome, or gold-plated finishes, ranging from sleek modern to classic nautical. Also nice: you can choose a white dial with black indices or a black dial with white indices .
Inside, it uses a synthetic fiber that measures humidity from 10–100% RH . This is handy for a more pleasant indoor climate (and for your woodwork, cushions, and onboard textiles). Combine it with the other Minor instruments and you have a small, stylish set that you can use every day.
Highlights
- Compact: 72×39 mm , ideal for small spaces
- Clearly readable: dial diameter 50 mm
- Humidity measuring range: 10–100% RH
- Durable finish: black matte / chrome / gold plated + mineral glass
- Perfectly matches the Minor series for a calm, maritime look
The Wempe Pilot comfort meter – a high-quality instrument made of polished stainless steel, measuring 100 x 35 mm. Part of the innovative PILOT series, inspired by modern technology and aviation design, this comfort meter stands out for its sleek lines and reliable performance. Available with a black or white dial, both equipped with white Luminova markings, the instrument offers optimal readability, even in low light.
The Pilot Comfort Meter combines a bi-metal thermometer and a hair hygrometer for precise temperature and humidity measurements, crucial for reliable weather forecasting at sea. The instrument can be placed either hanging or standing and is expandable with a matching barometer and ship's clock. This timeless and functional piece is perfect for those who value modern style and accuracy, with a subtle nod to aviation innovation – a Wempe enduring favorite.
Wempe Cup II Comfort Meter – A gem of a combination instrument for every water sports and sailing enthusiast. This luxury comfort meter combines a highly accurate thermometer and hygrometer in a single instrument, providing a reliable display of temperature and humidity. Wempe's high-quality German craftsmanship makes this instrument a durable investment for your boat, home, or even while traveling.
Available in two classic finishes: high-gloss polished brass or chrome-plated, this comfort meter perfectly complements a maritime interior. With a generous 140 mm diameter and a clearly legible 100 mm dial, the Cup II displays temperature from -10 to +50°C (Celsius and Fahrenheit) and humidity as a percentage. Ideal for those who value precision, quality, and timeless design. An instrument that adds comfort and class, wherever you are.
More maritime splendor? Right here on board!
Frequently Asked Questions
A comfort meter combines a thermometer and hygrometer in
one device. This makes the instrument suitable for measuring both the temperature and the
accurately monitor humidity, ideal for on board and at home
to prevent moisture damage and keep the indoor climate comfortable.
A hygrometer measures the relative humidity of ambient air, such as in a room or the cabin of a boat. This is the humidity of the atmospheric air at that specific location. The measured values can differ significantly from the humidity of the air outside. Unlike barometric pressure, which remains the same both indoors and outdoors, relative humidity indoors can vary considerably depending on the conditions. A good humidity level is between 50% and 60%.
You can purchase a thermometer and hygrometer separately or as a single combined instrument. It measures temperature and humidity separately and provides precise readings. You can determine whether the combination of temperature and humidity is comfortable.
A comfort meter measures the same data but combines them to provide an immediate visual indication of the comfort level. This is displayed in the comfort zone on the instrument, where you can see, for example, whether it's too dry, too humid, too warm, or just comfortable. Comfort meters are user-friendly and offer immediate insight, while thermo- and hygrometers focus on providing individual measurement data.
At Studio Maritime, you can buy both individual instruments and combined comfort meters. If in doubt, ask us for advice.
Both instruments are useful: a thermometer monitors the temperature, while a hygrometer helps control humidity. For limited space, a comfort meter (a combination thermometer and hygrometer) is a practical solution.
Our thermometers are not only durable but also designed to perform under maritime conditions. Hang them inside your home or cabin for optimal performance – this way you can measure the interior temperature, which is important for maintaining equipment, the interior, and the crew's well-being.
Most thermometers in our nautical range operate using a bimetal mechanism, where metals expand or contract with temperature changes, ensuring accurate temperature measurements. And because they are high-quality, they are not only functional but also a stylish addition to your home, camper, or vacation home.
A hygrometer measures humidity, essential for preventing moisture problems, for example on a boat where cushions and electronics are susceptible to mold and corrosion. A hygrometer also helps in the home.
hygrometer to control humidity for a healthier
climate.
To ensure accurate measurements, it's important to readjust the hygrometer regularly, especially if the instrument has been exposed to very dry air for extended periods. We recommend performing this adjustment every 3 to 4 months. This ensures the hygrometer remains reliable and accurate in displaying relative humidity.
A hygrometer is easy to calibrate by
Wrap the instrument in a plastic bag with a damp sponge for half an hour. Immediately after removing the instrument from the bag, it should indicate approximately 98%. Immediately dry the housing with a dry, dust-free cloth.
Humidity refers to the percentage of water vapor present in the air at any given time. A healthy (relative) humidity is between 40% and 60%, meaning the air is made up of 40% to 60% water vapor. The ideal humidity level on a boat and indoors is around 50%.
On a boat, the ideal humidity level is also around 50%, but it can vary depending on the conditions. Due to the constant presence of water and changing weather conditions, humidity on board can fluctuate rapidly. It's important to find a balance between 40% and 60% to maintain both comfort and a healthy indoor climate, and prevent problems like mold or condensation.

