WWZMDiB 5 Pcs PIR Sensor Compatible with HC-SR501 PIR Motion Module for Arduino Raspberry Pi STM32 (Comes with 2 Dedicated Cases)
5-Pack PIR Sensor for Arduino| Great Deal on HC-SR501 Modules with Cases.
Get 5 affordable PIR motion sensor modules compatible with HC-SR501 for Arduino, Raspberry Pi, and STM32. Includes two protective cases. Great value for DIY electronics projects.