Tech/Scan 32 plus Environmental Control Unit • LED prompt lights are embedded in the overlay grid. • Six levels for up to 192 independent messages. • Use with scanning or by direct selection. • Three modes of operation: linear, step and row/column. • Two switch scanning capabilities for use with step and row/column scanning. • Three scan speeds: 4.5 seconds, 2.25 seconds or 1 second. • Standard message length of 7.5 seconds per message. • Auditory prompt length of 1.5 seconds per row and column. • External earphone jack. • Optional infra-red for various TV controls.
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