VELUX ACTIVE is based on two-way RF (radio frequency) communication. Radio frequency range:300m free field. Depending on building construction, the indoor range is approx 30 m. However, constructions with reinforced concrete, metal ceilings, and plaster walls with steel members may reduce the range.
eBay
Excellent condition.
eBay
New in open box, from government surplus. Comes with what is shown.
eBay
Velux KIG 300 US Active Gateway with Netatmo. Condition is New. Shipped with UPS Ground.
eBay