400m Dual-Receiver Wireless Doorbell

This wireless doorbell system prioritises coverage, clarity, and continuity. Its 400-metre line-of-sight range translates to solid indoor penetration across typical UK brick-and-plaster constructions — covering detached homes, converted barns, or extended family dwellings. Two plug-in receivers ensure overlapping alert zones, while the transmitter’s IP55 rating guarantees all-weather readiness outdoors. Operating between -20°C and +60°C, it handles UK seasonal extremes without performance drop-off. The CR2032-powered button offers ~3 years of service life. Each receiver presents 52 melodies, five volume levels (up to 115 dB), and LED flash notification. Setup involves mounting the button with provided screws, anchors, key, or double-sided tape — then plugging receivers into UK sockets. Melody and volume settings remain intact after power loss thanks to persistent memory storage.