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Why is the Lux to W / M^ 2 conversion factor 126.7?

The peak of the luminosity function is at 555 mm (green); the eye’s visual system is more sensitive to light of this wavelength than any other. For monochromatic light of this wavelength, the irradiance needed to make one lux is minimum, at 1.464 mW/m2. That is,…

What are the differences between the WS-1002-WiFi and WS-2902?

The WS-2902 is a newer model and was designed to reduce overall cost, but is equal in accuracy to the WS-1002-WiFi. The WS-1002-WiFi has a nicer display console (TFT) vs. the WS-2902 (Color Film LCD), which has a limited viewing angle. The WS-1002-WiFi includes on…

What are the differences between the WS-2902A and WS-8478A?

The WS-8478A has a much nicer display console. The WS-2902A uses a color film LCD which has a small viewing angle. The WS-8478A uses a high contrast PMVA display, and is almost twice as large. The WS-8478A supports 7 additional thermo-hygrometer sensors. The WS-2902A includes…

Wunderground.com stopped updating. AmbientWeather.net updates fine.

Make sure the Station ID and Station Key are entered into the AmbientTool. It can be deleted if the firmware is upgraded. Please reference the User Manual here: https://p10.secure.hostingprod.com/@site.ambientweatherstore.com/ssl/Manuals/WS-2902.pdf Specifically Section 7.1. If you are already connected to WiFi, please advance to Page 38, Figure…

Forecast Cloud icon flashing, Osprey Series.

If the forecast cloudy icon is flashing rain, this means there was a rapid drop in barometric pressure, indicating a storm is in the forecast 24-48 hours in advance. When the pressure rises again or stabilizes, the forecast icon will stop flashing. In general, if…

The Outdoor Temperature and Feels Like Temperature Are the Same.

The Feels Like temperature is a combination of Heat Index when it is hot outside, and Wind Chill when it is cold outside. Wind Chill temperature is defined by the National Weather Service for temperatures at or below 40 °F and wind speeds above 5.0 mph. Heat…

Do Ambient Weather Stations support CWOP or APRS?

Yes and No….. Not directly, not at the moment. We have developed an API: API which allow programmers to create apps, including uploading to CWOP. The API documentation is available here: https://ambientweather.docs.apiary.io As you and others create apps, they are posted at our community listing:…

Wind Speed reads low, Osprey Series.

The gust is the maximum wind speed in the 16 second update period (sampled once per second), whereas the wind speed is the 16 sample average. It is difficult to “perceive” an average wind speed. We recommend you switch the display console to gust. It…

I would like to purchase a second or additional console for the WS-2902. Is this possible?

Yes, you can purchase as many consoles as you like. Two purchase a second console, visit: https://www.ambientweather.com/amws2902aconsole.html If your second console does not require connection to the Internet, and is for display purposes only, you can save by ordering the WS-1900 console: https://www.ambientweather.com/amws1900console.html The new WS-2000-C…

How do I clear rain on the WS-2902 Series?

To clear rain on the console: Press the RAIN button to switch between Rain Rate (in/hr), Rain Event, Rain Day, Rain Week, Rain Month, and Rain Total. Select the rain total you wish to clear. To reset the rain totals, press and hold the RAIN…

How do I prevent snow build up on my weather station?

Snow build up is difficult to prevent, especially “wet snow”. You can spray the top of the unit with teflon snow and ice repellent like this: https://www.amazon.com/DuPont-Teflon-Snow-Repellant-10-Ounce/dp/B0031T82NO but this is not 100% effective. Snow is considered normal maintenance, and accumulated snow can be brushed off…

What is the Model WS-1600-IP?

The WS-1600-IP is a combination of the ObserverIP Module, indoor thermo-hygrometer barometer WS-1000-BTH, and the Osprey sensor array (WS-2902). It has never been offered for sale but users with the WS-2902 can convert to the WS-1600-IP by purchasing an ObserverIP Module and WS-1000-BTH.

How can I test the accuracy of my hygrometer (humidity Calibration)?

Place the sensor inside next to the indoor console sensor. Wait about 24 hours for stabilization. The sensors should agree within the accuracy specifications. Most digital capacitive hygrometer sensors are accurate within +/- 5%. Thus, the sensors should agree within 10% when considering full tolerance…

Perform a Network Reset

To Perform a Network Reset: Please follow the steps below to perform a Network Reset: Unplug power to modem, router and weather console (unplug AC adapter and/or remove batteries). Plug power back into the cable Modem and let it sync back up with the network….

Why are Lithium Ultimate batteries recommended and not Alkaline or rechargeable batteries?

Lithium ultimate batteries like the following: https://www.amazon.com/Energizer-Ultimate-Lithium-Batteries-Each/dp/B00003IEME have a wide temperature operating range. They operate between -40 degF and 140 degF. Alkaline batteries only operate to about +10 degF. Rechargeable batteries often have a limited life and mean constant replacing, as well as a narrow…