Green Air CST-1 and CST-1P Chronometric Sequence Timers 

The only unit of it’s kind designed specifically for the control of grow systems. Easy to set and operate. Solid state time counter with adjustable frequency and duration. 

The Green Air CST-1 and CST-1P have many uses and only a few of them include: fogging or misting, spray stakes or drip system timing, air pumps, CO2 equipment and intake \ exhaust fan control.

The CST-1 may be set for frequency and duration of timed events. Frequency is the time between the "On" and "Off" cycles. The frequency knob may be set from 7 minutes to 8 hours.

Duration is the length of time that a specific function or condition must be maintained. Duration may be set from 5 seconds to 30 minutes. Reset feature allows function synchronizing with other system controls.

Right side of timer operates short cycle "On" times and left side outlets are "On" when right side is "Off". This feature provides an interesting variety of timing combinations. Operates on 110 VAC with 15 Amp switching capacity.

More info from the Manufacturer (PDF format - Lots of detail.)