FIBARO CO Sensor is an ultra-light, compact, battery-powered carbon monoxide detector, designed to be placed on a wall. Its high sensitivity allows to detect the presence of the carbon monoxide (CO) gas at the early stage in order to prevent carbon monoxide poisoning. Alarm is signalled with a built-in siren, blinking LED indicator and by sending commands to Z-Wave network devices. Additionally, the device is equipped with a temperature sensor. - Compatible with HomeKit - May be used as stand-alone carbon monoxide detector, - Wall-mounted, - Battery-powered, - Completely wireless, - Alarm signalled with a built-in siren and LED diode, - Built-in temperature sensor.