New and unused. EU version - works on 868,4 / 869,8 MHz - can be used in the US (or anywhere) with the right hub / controller

- Wireless smoke sensor

- Compatible with Fibaro Home Center 3, Yubii Home systems, or any Z-Wave & Z-Wave Plus controllers (Home Assitant, etc)

- Uses a 3V battery (included)

- Z-Wave & Z-Wave + protocols, EU version - 868,4 / 869,8 MHz