Kerui Smart Home Doorbell – Wireless 433MHz Personal Alarm & Emergency SOS Button
Premium waterproof ABS housing ensures durability in all weather conditions. Ultra-sensitive 433MHz wireless signal delivers instant alerts up to 100m range for reliable home security. One-touch SOS button triggers loud 110dB alarm, ideal for elderly care, child safety, or emergency response. Compact design with adhesive & screw-mount options for flexible placement on doors, walls, or keychains. Energy-efficient with replaceable CR2032 battery (included). FCC/CE certified for safety compliance. Perfect for smart homes, warehouses, or outdoor use. Bulk discounts available – wholesale pricing guaranteed.