MakerBot Smart Extruder+ for the MakerBot Replicator Z18

Detects the absence of filament, automatically pauses your print, and sends notifications to MakerBot Print and MakerBot Mobile Easy to replace or swap so you can minimize downtime and continue printing Tested for 160,000+ hours to ensure reliability, superior results and greater print success for a longer period of time Improved components and an enhanced sensor system ensure simple, reliable 3D printing from start to finish. Features enhanced homing, better connectivity, as well as drastically reduced clogging and jams Backed by a 6-month warranty when using PLA filament, which is double that of the Smart Extruder