Though this minute timer is designed for use with an IWS dripper system, because it comes pre-wired with a 3-pin plug, it can be used straight out of the box to control other items of grow room equipment that require more precise timing schedules than typical 15 minute intervals. Just use the Grasslin timer to set the times that you want equipment to switch on, then set the duration using the knob on the right hand side. You can switch between minutes and seconds by pushing the knob down – an LED will light up on the face to let you know which mode you are in. An instruction sheet can be found in the attachments tab just above this description.
Great for use with an IWS Dripper system
Requires no wiring – plugs straight into the wall
Can be set to switch equipment on in mins or seconds