www.wconline.com/articles/88026-dust-level-sensing-unit
dust sense feature

Dust level sensing unit

Oneida Air Systems Inc.

June 14, 2012

 The Oneida Dust Sentry with adjustable infrared-sensing technology has a strobe light to alert the operator when the dust reaches a preset level, indicating  whendust sense it’s time to empty the container. The operator will not have to unpack a filter full of chips again because someone forgot to empty the dust drum.