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The WS-YG315 Classic Weather Station from Ambient Weather includes barometer, hygrometer and thermometer. This traditional piece is at home in any fine study, office, library, upscale restaurant or scientific laboratory. The rich, lacquer finished wood framed cherry weather station measures temperature (in °F and °C), barometric pressure (mbar and inHg) and humidity (%). The bezels display an air of quality and accuracy one would expect with a fine, handcrafted weather instrument from Ambient Weather.
Weather Forecasting
The weather forecast or pressure tendency is based on the rate of change of barometric pressure. In general, when the pressure increases, the weather improves (sunny to partly cloudy) and when the pressure decreases, the weather degrades (cloudy to rain). The weather forecast is an estimation or generalization of weather changes in the next 24 to 48 hours, and varies from location to location. The tendency is simply a tool for projecting weather conditions and is never to be relied upon as an accurate method to predict the weather. The barometer includes a manually set needle, which is used to mark the current measurement so a change can be seen. Barometric readings should be taken daily. Remember that the rate of change of barometric pressure is important in determining weather changes. You may want to take multiple readings each day during periods of unstable weather conditions.
Reading the Barometer
It is highly advisable to lightly tap the glass near the center brass knob with your fingers before taking a barometer reading. The light tap will overcome any friction that may affect accurate hand readings, especially during periods of slow atmospheric changes. The Coast Guard has informed us that tapping the barometer is even required on the most expensive aneroid barometers, because the mechanism is made deliberately “stiff”. The ability if the barometer to indicate changes in barometric pressure makes it a useful instrument in weather forecasting.
Barometer Calibration
Aneroid barometers have a small screw on the back for sea-level calibration. With a flat blade screwdriver, turn this screw in either direction slightly while looking at the indicator needle. It should move in one direction or the other.
Tap the barometer to see where the needle settles. Continue this procedure until the proper pressure reading is obtained.
Special Notes and Caveats:
- The barometer only works to 3,000 feet. Do not order this product if you live above 3,000 feet.
- The weather station is intended for indoor use only.
- The weather station can be mounted horizontally and vertically (by adjusting the dials).
Features:
- 12 inches Long
- Dials: 2.5 inches Diameter
- Hang horizontal or vertical
- Weather station thermometer, barometer, hygrometer
- Wood base with lacquer cherry finish
- Faux Glass bezels
- Fahrenheit temperature scale
The Thermometer
The dial thermometer uses a bimetallic strip wrapped into a coil. One end of the coil is fixed to the housing of the device and the other drives an indicating needle.
The principle behind a bimetallic strip thermometer relies on the fact that different metals expand at different rates as they warm up. By bonding two different metals together, the coil bends, causing the needle to move.
Bimetallic thermometers are not as accurate as bulb (mercury or red spirit) thermometers. The dial thermometer should require no calibration.
The Hygrometer
The hygrometer measures the indoor relative humidity. The sensor measures the air moisture by a sensitive mechanical coil spring that is bonded with a moisture absorbent material.
Hygrometers register the percentage of water vapor present in the air, compared to the maximum amount that can be present at a given temperature.
The coils in hygrometers respond slowly and while humidity levels change abruptly, it can take an hour or more for the meter to reach an accurate reading. Remember that the hygrometer is reading indoor humidity, and is vastly different than outdoor humidity, as reported by the National Weather Service.
The Barometer
An aneroid barometer uses a small, flexible metal box called an aneroid cell.
This aneroid capsule (cell) is made from an alloy of beryllium and copper. The evacuated capsule (or usually more capsules) is prevented from collapsing by a strong spring.
Small changes in external air pressure cause the cell to expand or contract. This expansion and contraction drives mechanical levers such that the tiny movements of the capsule are amplified and displayed on the face of the aneroid barometer.
Many models include a manually set needle which is used to mark the current measurement so a change can be seen.
It was invented by Blaise Pascal.
Anne Orsi
2025-09-04 12:15:27
Beautiful and works the way it's supposed to. I'm glad I bought it.
Russ Clark
2025-05-25 13:13:31
Very nice wood panel too make the Dials stand out. Easy to read the Dials .
JD
2025-04-15 11:48:30
I purchased this so that I can check the weather. It is kind is hard to read since it is small so that is why the four stars. Had to set the barometer which first seemed to be stuck. Hit it as few times and it began to read. Everything else is pretty accurate. It does look nice on the wall.
HunnBunn
2025-04-07 17:05:47
This weather station is used daily in a classroom by students to record temperature, barometer, and humidity readings. Works well. The readings seem to be accurate and the device is well-built.
Kelly Vaala
2025-02-11 09:39:30
This was a gift for my brother for Christmas. It was exactly what he was looking for. Working well 3 months later. Reminds him of our uncle’s cabin up north.
i_fish
2025-02-10 18:34:01
First the good - thermometer works great but they always do. Barometer, to my greatest surprise, was very accurate and fast, though you DO NEED to tap it often, but as long as you do, it is really accurate according to my local weather station.Hygrometer spring however is not sensitive enough. No matter how you set it up after calibration, the entire range of the hygrometer is 20%. If you make it show 95% with a hot wet towel around it, like it should, it will drop down no more than to 75% after towel removed, when my dehumidifier and my other hygrometer shows 45% in the room. If you set it to show 50%, then even with a hot wet towel it will not go up more than 70%.I like the looks from a few feet distance. Looks expensive. It is misleading though, because once you touch it you see it is cheap plastic and bad stain. Either way I like the looks.Hygrometer is the most important dial for me though, because I have serious humidity problems in this house and have dehumidifiers in almost every room. This just doesn't work for me. Sending back tomorrow.
Evelyn
2025-02-09 11:31:37
really nice looking weather station. This takes care of all of my needs in one unit.
Ken Petrini
2025-01-29 10:58:31
Very nice for the price. Seems accurate.
stephanie
2025-01-20 13:01:44
Looks great and is very accurate, muc better than the weather on the news!
Avid reader
2025-01-17 13:30:52
For the price it's good
Ronald C Hyland
2025-01-06 13:34:21
Like it very much sure tell when a storm is coming in barometer goes up then drops fast.
Marsha Marie Mosher
2024-12-22 11:57:35
my daughter loves it
Jojo
2024-12-14 10:49:32
Un peu plus petit que j’imaginait mais c’est correcte
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