Based on this product's specifications, here are some alternatives and similar models
Wireless motion sensor ZAMEL RCR-01 (EXF10000019) — battery-powered radio PIR detector
Summary description:
ZAMEL RCR-01 is a wireless radio motion sensor (EXF10000019) designed for presence detection using a PIR detector. Battery-powered and intended for integration with compatible radio alarm or automation systems, it detects human motion and triggers remote signalling. Typical uses include perimeter security, room occupancy sensing and smart home automation.