Wireless Interconnected Smoke Detector Fire Alarm, HATHEPHS 10 Year Battery Interlinked Smoke Alarm with Enhanced Photoelectric Sensor, Adhesive Tapes Included, 3-Pack (Amazon Affiliate)
US: https://amzlink.to/az0v6qlYg8Yge
HATHEPHS Wireless Interconnected Smoke Detector with 10 Year Battery (3 Pack)