The single io controller is used for adding doors to a cloud node one door at a time or expanding an existing pdk system. Each unit is equipped with a fully supervised power circuit that monitors input, output, battery voltage, and overall controller health. Users receive important system notifications via text and email. The 1DE uses Ethernet connection. A Wireless connection option is also available as product 1DW.

Scalability - Whether you need three doors or a thousand, the single io controller also allows you to scale the system to just the right size.
Plug n’ Play Connectivity - All io devices were designed to be plug n’ play, making them super easy to install right out of the box. It’s easy to add in any io device no matter how large the job is, and you can quickly scale a system to any size. A cloud node can connect with up to a thousand doors on a single platform.
Two Reader Inputs - Two reader inputs are ideal for applications where both read in and read out is a security requirement. Know exactly when users enter and exit a premise. The second reader input can also be assigned to trigger automated events.
Fully Supervised - Never be caught off guard again. Pdk.io intelligently monitors the network and wireless connectivity of each controller in your system and alerts you if any issues arise. 
Connectivity - The single io is built for ultra-low bandwidth consumption and easily connects to existing or dedicated networks. Easily expand a system's wireless coverage (via network) using the ethernet gateway.