Multisensor_4_in_1

2 Aeon Labs Z-Wave Multisensor 4 in 1

http://www.kiwi-electronics.nl/aeon-labs-z-wave-multisensor-4-in-1

http://www.robbshop.nl/multisensor-aeon-labs-4in1

http://www.domotica-shop.nl/aeon-labs-4in1-multi-sensor-p-16429.html (54.50 euro)