9850 Gen II Rotary Sensor Modules BEI Sensors 9850 Gen II Rotary Sensor Modules are low profile (15.2mm with a maximum connector receptacle height of 25.9mm), allowing the devices to fit a variety of space-limited applications. The sensor modules include a dual-output version for two-sensor functionality in a single device. BEI Sensors 9850 Gen II Rotary Sensor Modules ensure plug-in simplicity and sealed connector contact. This series also offers 180° or 120° mechanical rotation with round or slotted mounting holes for optimal installation alignment.