Your Smart Weather station is specifically designed to measure the unique environmental conditions around your immediate location. Where you choose to locate your sensors will have a significant impact on the quality of your weather data. AIR and SKY can be up to 1000 ft (300 m) away from the Hub with no obstructions. Most of the time, your data will differ from a nearby weather station - because it's in a different location! A home station should measure the conditions at YOUR home, and allow you to make decisions accordingly.
AIR was designed to be placed in full shade. The small and wireless form factor allows you to move the device easily from season to season as the sun angles change. For proper measurement of temperature, humidity, pressure, and lightning, locate your AIR as follows:
- Outside and at least 3 feet off the ground, ideally at eye level
- In full shade. If you don't have a location that's in full shade all day, consider purchasing a simple "radiation shield" like this one on Amazon: http://a.co/f3IhWnt (assemble the shield while the AIR is already inside - the AIR won't fit if you build the shield first)
- Away from potential sources of extra heat and moisture (such as sprinklers, air vents, brick and other dark surfaces)
- Orient vertically for the best lightning detection performance. Also, it's important to position the AIR vertically so that the sensor vent port is able to drain moisture down and away.
- Away from nearby sources of electromagnetic interference, such as antennas and electric fences.
Mounting: AIR can stand alone or be mounted in an upright position using the keyhole slot or by 1/4"-20 thread. A simple mount for AIR that we recommend: http://a.co/9mBeXGv
Orientation: AIR should be vertical for the most effective lightning detection. Proper moisture shedding requires the AIR to remain upright unless the AIR is shielded from water and condensing dew.
Note on Relative Humidity: If your humidity reading seems high (or low), remember that AIR is reporting hyper-local conditions. An accurate measurement may differ dramatically from other sources you're used to. Remember, this is YOUR WEATHER, not the weather from the Airport that your phone or the TV news reports. Your yard has its own 'micro-climate' and will report the truth of the exact location where your AIR is sited: that means it will be wetter near things like trees, ground cover, wet decks, dryer vents, etc. and ambient temperature will be higher closer to surfaces receiving direct sun.
Note on Lightning detection: While your AIR should detect most lightning, it may not record every strike. The lightning sensor is relatively sensitive to both position and direction. If your AIR detects regular "false positive" strikes, this may be due to another source of electromagnetic interference (motors, fluorescent lighting, radios, computer electronics, etc.). Be sure to locate your AIR away from these sources. On the other hand, if you feel your AIR is detecting fewer real lightning strikes than you experience, try moving it, or rotating it slightly. Subtle changes in the positioning of air can make all the difference.
- In full view of the sky all day long, away from trees and shade which can obstruct the sensors.
- With unobstructed exposure to wind from as many directions as possible, and at least 3m (10 ft) above any surface (ground, roof, etc). SKY needs 15 cm (6 in) of clearance from any object.
Mounting: SKY should be mounted securely, insulated from any motion and vibration. We recommend using the compression mount, included with your SKY, mounted to a cylindrical mast. The SKY mount is designed to fit a standard “one-inch” nominal pipe (outer diameter = 1.315 inches, or 33.4 mm) as well as a 1.25 inches (32 mm) outer diameter pole, both common at DIY stores around the world.
Orientation: SKY should be as level as possible with the side marked "N" facing true North, not magnetic North.
Note on Rain: The haptic rain sensor in SKY detects rainfall by sensing the vibration caused by individual rain drops impacting the top surface. There are filters in place to identify and correct for non-rain sources of vibration (loose mounting, birds landing, etc), but these filters err on the side of caution. That means some sources of vibration can appear to the sensor as real rain. If you encounter this "false rain" phenomenon, you may need to adjust your installation to prevent whatever motion or vibration may be causing it.