Plejd EXT-01 Wireless Input Expander, 2 Potential-free Inputs, Bluetooth Mesh, Battery-powered

Imagine a beautiful, high-quality wall switch that perfectly complements your interior design, but it isn't wired into your Plejd smart lighting system. The Plejd EXT-01 solves this by turning any existing switch or push button into a wireless trigger for your Plejd devices. It connects up to two potential-free contacts and communicates over Plejd's Bluetooth Mesh network, all from a compact unit that hides behind the switch plate. Powered by a CR2450 battery with up to 10 years of life, it requires no mains wiring and no electrician.

Key specifications

• 2 potential-free (dry contact) inputs for external switches, push buttons, or sensors
• Wireless communication via Plejd Bluetooth Mesh (2.4 GHz)
• Powered by a single CR2450 battery (included), typical battery life up to 10 years
• Compact design for flush mounting behind a standard wall switch or in a junction box
• Maximum input voltage for connected devices: 24V AC/DC, max current 10 mA
• Operating temperature range: -20°C to +45°C
• IP20 rating, suitable for indoor use only
• Wireless range up to 10 m to the nearest Plejd device
• Compatible with all Plejd smart lighting products and the Plejd app

Why choose it

Keep the switches you love and make them smart without replacing them. Installation is incredibly easy—no wiring to mains, no electrician needed. The battery lasts up to a decade, so you can set it and forget it. Bluetooth Mesh technology ensures reliable communication even in larger homes, and the compact size fits discreetly behind any standard switch plate.

Ideal use cases

• Retrofit existing wall switches to control Plejd smart lights
• Add wireless push buttons for scene activation or dimming
• Integrate door/window sensors or other dry-contact devices into the Plejd system
• Create multi-way switching without additional wiring

Good to know

The EXT-01 is battery powered and requires no mains connection. It is designed for indoor use only (IP20). Battery life depends on usage frequency and environmental conditions. The device must be within 10 m of another Plejd device to maintain mesh connectivity.