Claber 8423 Aquauno Select 2-Dial Water Timer 2 Dials for instant programming: 7 pre-set watering frequency and 9 pre-set watering duration Watering frequency range from every 8 hours to every 7 day; watering cycle duration range from 1 minute to 60 minute Starting time of watering cycle happens when the frequency dial is turned A 5 minute preset manual mode allows for watering between cycles or for programs interruption 2-Year manufacturer warranty