TORK digital interval timer without neutral applications: offices, meeting rooms, energy code timed override, exhaust fans, equipment rooms, closets, storage spaces. Features: color: white (single gang decorator wall plate included) energy code preset: 2 hour timing for Title 24 and iecc (default) 4 hour timing for ashrae 90.1 (with quick dip switch adjustment) display: backlit LCD display wiring: no neutral required.