Figure 2
From: Motion and Sash Height (MASH) alarms for efficient fume hood use
Magnetic reed switch characterization. Based on ten magnetic reed switches and maintaining a 6 mm clearance in the mirrored case, the hood sash is reported to be closed at a separation distance of 15.0 mm in the sliding case (a), and 23.6 mm in the mirrored orientation (b).
