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The Zephyr 1 Day/night temperature controller is something every gardener should have tending their indoor garden. Set your day and night temperature on the dial, and the controller does the rest of the work for you. The Zephyr 1 provides the ease of use and dependability you’ve been looking for in a temperature controller.

  • Day and night settings keep indoor garden temperature within 4° of setpoints
  • Plastic enclosure protects internal components from dust and moisture
  • Temperature control range is 55° F to 95° F
  • Controls both cooling & heating equipment
  • 6 foot temperature probe is accurate to within 2° F
  • ETL listed in US and Canada for commercial applications
  • 15 Amps/120 Volts/60 Hz.
  • 2 year warranty