Sentinel EVC-1, Environmental ControllerCondition:* New. In OEM Packaging. As Pictured.Additional Notes:* Designed To Maintain a Specific Temperature And Humidity In Your Hydroponic Garden* Control Temperature & Humidity Separately or Together* A Selector Switch Lets You Customize The Controller. Either Increase or Decrease The Humidity Level.* Built-In Photocell Determines Whether It Is Day or Night, Activates CO2 Device Only During Daylight Hours* A Built-In Feature That Is Very Useful Is The Night Device Outlet, Connect Your Night Only Device Into This Outlet* Heavy-Duty #14 Gauge Power Cable, Fuse Protected By a 15-Amp e-Settable Circuit Breaker* Built in Photocell Activates CO2 Device During The Day* Night Device Outlet Can Control an Exhaust Fan / Sulfur Burner etc.* Min / Max Operating Temeperature: 32 F – 120 F* Min / Max Humidity 0-99% RH, Humidity Accuracy +/- 7% rH* Amps / Volts Requirements: 15 Amps @ 120 Volts* Thermostat Type: Remote Bulb 36″ LengthSentinelEVC-1