Water leakage alarm

My channel / @lightech7027
/ @lightech7027
VK group lightech_channel
Buy favorably on AliExpress alibonus.com/?u=61146
Useful tools:
Parts Tester:
1. the simplest megabonus.com/y/4XQp2 or megabonus.com/y/9DhkS
2. which is my megabonus.com/y/QRGEw or megabonus.com/y/iySrM
3. with battery megabonus.com/y/1N8Vr or megabonus.com/y/Bs95u
Multimeter megabonus.com/y/uSfDh or megabonus.com/y/ZrMOt
Soldering iron with adjustment: megabonus.com/y/Jrh0Z or megabonus.com/y/kRxVJ
Flux megabonus.com/y/QhNSI or megabonus.com/y/VfmJQ

[@user-yk1fg1rh5n]

какой резистор? можно ли одинаковые транзисторы? 2а2222 подойдет?

[@lightech7027]

в видео есть схема, там подписаны все компоненты