Key Features of HEYI HY-W20 Wireless Alarm System
High-performance 433MHz wireless technology ensures stable, interference-free signal transmission for reliable security monitoring. Dual-network compatibility (WiFi/GPRS) with optional 2G/4G support for flexible connectivity in areas with varying network coverage. Real-time SMS alerts instantly notify you of intrusions, even without internet access, ensuring prompt response. Premium ABS housing with reinforced internal structure resists tampering and harsh weather conditions (IP65-rated). Easy DIY installation with magnetic contact sensors, motion detectors, and remote control—no wiring or professional help needed. Expandable system supports up to 50 devices, ideal for homes, offices, warehouses, or retail stores. Energy-efficient design with low-power standby mode and replaceable lithium batteries for extended use. Multi-layer encryption protects against signal hacking, ensuring your data remains private and secure. Sleek, compact design blends seamlessly into modern interiors without compromising functionality. Optional cloud storage (via subscription) for reviewing alarm logs and footage from anywhere via smartphone app. Global voltage compatibility (100V-240V) with backup battery for uninterrupted protection during power outages.