Sensors can be used for several different things and often several different types of sensors are needed for this. But with Fibaro Multisensor you can get four different sensors in one, motion sensor, temperature sensor, light sensor and accelerometer. By connecting a multi-sensor to your smarthub (connected via Z-wave), you can use events that the sensor records to control things in the home. One example is to use the temperature sensor to measure the heat in the house and if the temperature drops below a certain degree, your hub activates a smart plug that is connected to an element. When the temperature has risen to the desired degree, the element is switched off again.
The multisensor is completely wireless and powered by batteries, which together with the size being comparable to a golf ball make it easy to place in the home.