The Unagi Model One has a IP54 waterproof rating which means that it is resistant against splashes, however, will not be resistant to submersion or prolonged exposure to water.
Being caught in the rain (something which isn't too unlikely in the UK!) shouldn't be much of a problem with the Unagi, however, after a journey involving water and moisture, we would always recommend for the scooter to be dried with a towel or something similar. Please don't use a source of heat such as a heater or hair dryer to dry your scooter.
Can I leave my scooter parked out in the rain?
Unfortunately, the long term exposure to water when a scooter is left out in the rain would not be recommended as this could possibly result in permanent damage to the device.
Is water damage covered under the warranty?
Unfortunately, water damage wouldn't generally be covered under the warranty.