Bought the Aqara Motion Sensor P1 on 11/11, after all the discount vouchers, and paid S$26 for it. Normally, it retails for S$36 on Souky’s Lazada Shop.
Aqara Motion Sensor P1 is a battery-powered motion sensor using two CR2450 batteries. It has a 5-years battery life on paper, but I am skeptical about it. If the battery could last me for more than a year, it is good enough for me.