Ambient Weather WS-2902C WiFi Osprey Review, #1 Best Seller!

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Ambient Weather released the WS-2902 Osprey in April 2017 making this one of the newer home weather stations around. The WS-2902 is a full-featured professional weather station designed for residential weather enthusiasts but with all the features demanded by experienced weather geeks.

Known for their 7 in 1 weather stations, Ambient delivers one in a whole new design, incorporating the latest improvements from their other models. Ambient refers to the WS-2902 Osprey as a 10 in 1 by counting the 3 indoor sensors along with the 7 outdoor weather instruments.

Ambient Weather’s 2902C has become a runaway bestseller on Amazon and it outsells all of the other pro weather stations. Many people consider the 2902C to be the best home weather station of 2019. See if you agree…

Take a moment and see the 2902a and read the amazing comments on Amazon

Benefits of the 2902C Osprey

  • Very easy to install, no special fittings.
  • The most bang for your buck for a complete professional weather station.
  • Includes all of the standard sensors + two more; solar radiation and UV levels.
  • It’s an internet weather station, or not if you choose.
  • No wires to hook up, all the parts communicate wirelessly.
  • Solar-powered; backup batteries last a long time.
  • Easy to read indoor display.
  • Super fast and easy help from Ambient if you run into a problem.


Indoor / outdoor temperature and humidity. The outdoor thermometer and hygrometer are enclosed in a passive radiation shield. People are reporting that the quality of the weather measurements are on par with far more expensive weather equipment.

Wind speed and direction. The wind direction vane includes a dampener to help remove the effects of turbulent air flow.

Rainfall, measurement is taken with a single tipping bucket mechanism instead of the usual double. This is to help eliminate false rain readings when the wind makes the weather station sway back and forth. Does it work? I’m not sure…

Barometric pressure, you have to manually set this. Look up the weather report for the nearest airport and use that number if your elevation is about the same.

Solar radiation, this is a measure of the solar power reaching the earth presented as watts per square meter. If you have solar panels or if you are a gardener, you’ll find this handy.

UV light, do you sunburn easily? A glance at this measurement will alert you to hazardous conditions.

The pictures on Amazon are almost always copyright protected, so head over there to see more Information and photos of the Ambient Weather WS-2902C.

A Closer Look: the Ambient Weather WS- 2902C Review

The 2902C Osprey design is an attractive alternative to the common weather instrument cluster. Instead of incorporating all of the weather sensors into as small an area as possible like most all-in-ones, the WS-2902C has the major sensors mounted at the ends of a “Y” shaped platform. This design makes the WS-2902C very lightweight, coming in under 4lbs.

The 2902C Osprey is easy to install

Other than the unique look, the next noticeable feature is the simple u-bolt mounting bracket. The weather station is mounted by sliding it over the end of any pipe size from 1 inch to 2 inches and then just tightening the u-bolts. If you wanted to mount it on a wooden post or on the fascia of a building, you’d have to clamp the pipe on in some way.

There is some assembly required, but not much. The rainfall funnel, the wind speed cups, and the wind direction vane have to be installed. The outdoor array takes 2 AA lithium batteries and the indoor display takes 3 AAA batteries. Batteries come in packs of 4 right? …Oh well.

The WS-2902 is on my list of the best home weather stations!

A couple of things you should know…

One of the things you might notice is that the wind vane does not turn quite as freely as you would think it should. This is intentional, the wind vane movement is dampened so it doesn’t flip around wildly like most of the other ones do. This works very well.

Another thing to watch is that the rainfall funnel is securely attached. Make sure you turn it until it clicks, otherwise, it can blow away. This is a nice feature that makes cleaning the rain gauge easy. There is no need to disassemble the whole weather station, just unscrew the rain collector funnel off, clean the dirt, leaves, or bugs out, and reinstall.

A solar-powered supercapacitor with battery backup

A less noticeable feature you will appreciate is the solar charged supercapacitor power source. This allows the use of lithium batteries for night time power instead of alkaline rechargeable batteries. Lithium batteries not only last a lot longer but more importantly, they will keep working when the temperatures get as low as -40°F.

Please put the batteries in first thing…

On the topic of the batteries, put them in first, before you remove the cover from the solar cells. The batteries will quickly charge the supercapacitor and then the solar cells will take over. If you don’t do it this way the weather station will try to run off of the solar cells alone and it will go into a “twilight” state to conserve power.

If you remove the cover first because you didn’t know this, just cover the solar panels up to completely discharge the supercapacitor. You may need to use a paper clip to reset the unit and then install the lithium batteries. A little strange, but that’s how it works.

The WS 2902C indoor display

Next, we come to the WS-2902 indoor display. It shows the seven weather readings from the outdoor unit plus the three indoor readings. (Indoor temperature, humidity, and atmospheric pressure) There’s your 10 in 1 weather station.

The display also calculates dew point, heat index, and wind chill.

Also shown is the time and date, forecast and trends, RF and WIFI status, moon phase, and high/ low events. The DST symbol stands for Day Light Savings Time.

The display isn’t perfect, but…

If there is a weak link in the system it would be the display. There are a few people that don’t like the fact that LCD displays have a limited viewing angle. All LCD displays from any manufacturer have the same limitation.

On the positive side, the 2902 Osprey has backlit colored digits on a black background which makes it far brighter and more readable than black digits on a colored background. Looks good too.

On my weather station, I put the display where it gets the best signal and I just look at my computer to see what’s up with the weather. I almost never even look at my display unit.

TFT (thin film transistor) LCD displays are better but are a LOT more expensive. At more than twice the price you can get a WS-2000 or the WS-1002 with a nice TFT LCD display that can be read from almost any angle.

 See More About the Ambient Weather Osprey Here

Connecting the WS-2902C to the internet

The WS 2902 is a wireless weather station where the outdoor weather instrument array transmits a 915 MHz signal up to 300 feet to the indoor display which, in turn, retransmits a 2.4 GHz signal to your wireless router. From your router, you can upload your weather data to and weather underground…but only if you want to.

Connecting the ws-2902C to the internet weather sites is easy for most people but difficult for others. The directions are clear in the manual and must be followed in order. Connecting was made much easier when Ambient replaced the WS-2902 with the WS-2902C.

While I find it easier to setup IP based personal weather stations through my computer, the convenience of using WIFI instead of having to keep a computer running 24/7 makes it worth the effort.

 Some common problems encountered connecting the WS-2902C Osprey:

  • The indoor weather display must be plugged in to activate the 2.4GHz WIFI. Then the WIFI symbol near the time display must be on and flashing. When the display is connected to the router the light stops flashing and stays on.
  • On the older WS-2902 all of the control and setup options are accessed through a free setup app using your mobile device. This must be done through your 2.4GHz wireless router. The 5GHz function on a dual-band router has to be temporarily turned off until the setup is completed. NOTE: If you purchased the WS-2902C, all of the set-up is done through a direct connection between the display and your router. Much easier!
  • Set up an account with Weather Underground separately and when completed, enter your info that WU emails you into the account.

Use Alexa, Google Assistant, and IFTTT…

You can set up your connected devices to answer your queries, “Alexa, ask Ambient Weather what the weather forecast is” or “Alexa, ask Ambient Weather what the weather was on (pick a date)” Or “Alexa, ask the NSA where my car keys are” — Maybe I’m just too old for this….

Now, I do find the IFTTT (If This Then That) capability interesting. Being able to have things in or around your home automatically respond to changing weather conditions could be useful. Or maybe you would like an email alert if certain weather conditions occur. The currently available services can be seen here:


  • Very easy to install.
  • Compares favorably with far more expensive stations.
  • Easy maintenance, removable rain gauge funnel, no need to take the weather station apart to clean. Solar charged supercapacitor powers unit throughout the day and part of the night; batteries last a long time.
  • Access your data from a computer or smartphone from anywhere.


  • The LCD indoor display is harder to read at an angle. This is a common problem with most weather station displays. The solution to the viewing angle problem is a TFT LCD display, which is costly.
  • Cannot use additional sensors. There has been some talk about making additional displays available to place in other rooms.

Click Here For Prices and More Info or just to look at all the interesting comments.

Features and Specs

  • Indoor and outdoor temperature, outdoor thermometer enclosed in a solar radiation shield.
  • Indoor and outdoor humidity
  • Wind speed, samples every second and reports 14-second average and highest gust.
  • Wind direction, dampened wind vane that doesn’t whip around.
  • Rainfall, reports rates and totals. Uses a single tipping bucket for fewer faulty readings.
  • UV light sensor, avoid sunburns!
  • Solar radiation sensor, great for farmers and gardeners. Also good for SAD sufferers.

Specs for the WS-2902C Osprey:

Indoor Thermometer14° to 140°F0.1°F+/- 2°F64 seconds
Outdoor Thermometer-40° to 149°F0.1°F+/- 2°F16 seconds
Indoor Humidity10% to 99%1%+/-5%64 seconds
Outdoor Humidity10% to 99%1%+/-5%16 seconds
Wind Speed0 to 100MPH1.4MPHThe greater of:
+/-2.2mph or 10%
Averaged over 16 seconds
sampled every 1 second for gusts
Wind Direction0 to 360°+/- 10°16 seconds
Barometric Pressure8.85 to 32.5 inHg0.01 inHg+/- 0.08 inHg64 seconds
Rainfall0 to 394 in0.01 in+/- 5%16 seconds with rate and accumulation
Solar Radiation0 to 200,000 Lux1 Lux+/- 15%16 seconds
UV0 to 151+/- 116 seconds

What people are saying

There are many comments about how easy the Osprey is to install. Several people had the weather station up and running in less than 15 minutes! Some people have questions about getting their station online and are very impressed with the speed and quality of the response from Ambient Weather when they have questions.

Read more comments about the Ambient Weather Osprey here.


Pretty impressive. Of all the personal weather stations I’ve looked at, this one has the most customer satisfaction. From the ease of setup and installation for the first time weather station owner to the positive comments by hardcore weather geeks about the quality and amount of weather data, makes the 2902C Osprey a pretty safe bet.

Almost everybody comments about how quick and easy it is to get help from Ambient Weather.

To me, the only shortcoming is the lack of expandability, but being that the WS-2902C already has 10 weather sensors right out of the box, it starts out ahead of most of the other personal weather stations. If and when they sell a second display unit, that would make it perfect.

Is there is a difference between the WS-2902 and the WS-2902A, B, and C?

Yes. The original release was the WS- 2902 which connected to your router through the AmbientTool mobile app, and now the improved WS-2902A has direct connectivity with the router. This has eliminated some set-up problems some people ran into, especially with dual band routers.

The weather stations are both the same but for the steps for connecting to the internet, which has been made much easier.

After that, the main improvements are firmware related. Connectivity just keeps getting better.

I would definitely recommend the WS-2902C over the older WS-2902. So far, WS-2902C weather station owners seem pleased.

What is really amazing is the WS-2902C is already the second most used model used on Weather Underground! Considering that the 2902C was just introduced in April 2018 and is second only to the venerable Davis Vantage Pro 2.* Just give it time…


How do I install my 2902C weather station sensor?

Your weather station mounts on top of a 1” to 2” pole and is attached by 2 built-in clamps. You can mount the 2902C to a short pole or pipe and clamp or bolt the short pole to another larger pipe or wooden post. See more ideas on this page.

Can I add more sensors to my 2902C?

No, the WIFI display will only pick up the signal from the outdoor sensor.

Will the 2902C work with my Android?

Yes, the Samsung Android and the Apple iPhone are both compatible. If it has a web browser, you can see your weather data.

Do I need to empty the rain gauge on my 2902C?

No, the rain gauge is self-emptying. All of the rainwater just drains out the bottom. What you might have to do sometimes is clean out the leaves or other stuff that falls into the collection funnel.

Can I add another indoor display so I can see my 2902C weather from another room?

Yes, Just buy a 2902C-Console from Ambient Weather. Remember you only want one of the displays to be connected to your router. So just leave the WIFI off on the second display. Both of the displays will pick up the transmissions from the outdoor sensor at the same time.

Do I have to connect my 2902C to the internet?

No, it will work fine as a stand-alone weather station. You’ll see all of your weather readings on your display only. The 2902C uses the internet to keep the clock adjusted so you might want to keep an eye on it and adjust it manually if needed.



Read my Ambient Weather WS-5000 review.

Check out more of the best weather stations here.

* Reference :;topicseen#msg356114

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