What does multi-sensor technology mean?

By using a Multi‑Sensor alarm – otherwise known as an “all in one smoke detector” or “combination alarm” – this eliminates the need to fit separate single‑sensor products (e.g. ionisation and optical alarms). Not only does this reduce the likelihood of false alarms associated with these types of alarms, but it also more environmentally friendly as there are storage and disposal issues with ionisation alarms due to their small quantities of radioactive material (Americium 241). It is important to note that this material – used to detect smoke – is in the form of a sealed source and represents no hazard to those installing, or living with, the alarm.