The KNX system devices comprise of devices to feed the bus or devices, to couplers and gateways to link different parts of the system, interfaces to communicate with or program devices and devices needed only once per installation like a weather station. So it is a bundle of very different products.

Here are some devices and special features listed:

• KNX power supplies which can be later extended by an emergency option,
• A Year time switch which can be synchronized by GPS usable nearly all over the world,
• A KNX weather station protecting roof windows, awnings or blinds and provides an automatic sun protection for up to 3 facades,
• A KNX Logic module with push buttons and LEDs for typical applications like big rooms with movable walls, (schools, universities, restaurants, etc.
• A KNX Energy meter for 3 phases to identify energy saving opportunities, several devices can be chained to sum up bigger areas,
• KNX Coupler and KNX IP-router to link different lines with twisted pair or Ethernet cable according to the needs

Benefits for SI

• SI can offer this interesting function at a cheaper price.
• No extra power supply needed.
• Same device can be used in countries with 2 different voltages, less references to handle
• Only 1 device to mount.
• All in, SI does not need additional devices and is flexible for additional customer demands.
• SI can realize other useful functions if not needed for Weather, so price advantage.

Benefits for end user

• Customers get a very comfortable solution for a good price.
• Cheaper solution.
• Better look than different sensors mounted.
• Price advantage.