Датчик открытия дверей/окон Aqara

 https://www.aliexpress.com/item/1005004725628121.html

Model - MCCGQ11LM (Global Version)

Max. sensing distance: 22mm

Working temperature: -10 - 50 Deg.C

Working humidity: 0 - 95pct RH

Built-in 1pc CR1632 cell battery