115g AND output (series) for 1 to 8 sensors Compact design Un-used terminals can be toggled off, simplifying the set-up process. Signals can be converted (PNP to NPN & NPN to PNP). All sensors in a box must be NPN or PNP, except in a series of boxes where entire boxes can be different. LED indicators allow for easy troubleshooting. Expandable up to 32 inputs with additional boxes (4 boxes total) Strip wires before inserting them into the box.