The Amhey Wireless Motion Sensor Alarm operates as a standalone security tool utilizing 433.92MHz analog-RF signaling. This closed-loop architecture eliminates dependencies on cloud servers and internet connectivity, providing immediate local response. The detection mechanism consists of a Passive Infrared (PIR) sensor with a 110° Fresnel lens arc.
Power specifications indicate optimization for 5V DC via USB or AAA battery backup. While the siren is rated at 115dB, measured performance typically peaks at 105dB. The 433MHz frequency is susceptible to environmental interference from high-power routers or microwave ovens, and signal range is significantly reduced when passing through masonry or brick structures.
Technical specifications indicate that the hub can support up to 20 additional RF-paired sensors. However, the system lacks digital logging capabilities and does not provide remote notifications without the addition of an RF-to-MQTT bridge or smart gateway.
Material analysis identifies this unit as a white-label ODM product characterized by a high-volume, stabilized PCB layout and mature firmware.
Performance metrics show that high-sensitivity settings can lead to rapid battery depletion, often within a 3-month window when utilizing the AAA battery configuration.
For users requiring a system that includes integrated smartphone notifications, the Senckit Smart WiFi Siren offers native app support.
This hardware is an analog-specific entry within the wireless sirens and panic buttons classification.
