Cheapest ZigBee Motion Sensor For Your SmartHome - SmartHomeScene
Tuya Smart Life Zigbee 3.0 Motion Sensor Rechargeable Motion Detector Sensor PIR for Home Security Work with Smart Life Devices Build-in Tuya Smart Life APP (Tuya Smart Life Zigbee Hub Required) -
WiFi Motion Sensor Alarm: Smart PIR Motion Detector Alert with 110dB Siren & App Alerts, Tuya App for Remote Arm/Disarm, 4 Alarm Modes Home Security System Compatible with Alexa/Google Assistant - Amazon.com