Product Feature: Swivel nut for easy connection; Over mold dial for better gripping easy to read top View Settings; Continuous Watering Up To 120 Minutes With Automatic Shut Off; Water Pressure: Ranging From 15 To 120 PS; Water Temperature: Max. 40 degree; Manual On - Off; No batteries required. Installation: Step1 : Screw the water timer on to the water top; Step2: Now fix the garden hose to the other end of the water timer; Step3: Press the lock button once so as to secure the hose connection; Attention:This item can only use on the standard tap or G3/4" male thread .