On sale is this motion sensor that can detect motion with a 120⁰ angle up to 5m and the sensitivity can be set to low, medium and high. In a smart home setup this sensor can be configured to do a variety of actions when motion is detected. This includes sending you an alert, turning on a smart light, triggering an alarm and more.
Since it's a Zigbee sensor it requires the use of a Zigbee gateway and it's compatible with Home Assistant. It's powered by a CR2450 battery offering up to 1.5 years of battery life.
AU$ based on current Mastercard rate, GST inclusive and stacks with cashback.
Look exactly like the one from cygnett, probably best to buy multiple units as you'll always end up with one or two with inconsistent performance.