Orbit® Automatic Sprinkler Timers

No. 137988 uses text messaging to simplify programming and inform timer timer status. Three independent programs let you set to days of week, watering intervals or even/odd days in 1–120 min. times in 1-min. increments. No. 137991 has two independent programs that let you set to days of week, watering intervals or even/odd days in 1–99 min. times. Up to eight start times per day--great for drip irrigation, new lawns and reducing runoff. Easy-connect wire terminal allows hookup without tools. No. 137990 runs from a wireless remote that controls each of up to six stations without interrupting your timer’s set program.Two independent programs that let you set to days of week, watering intervals or even/odd days in 1–99 min. times. Up to eight start times per day. Intuitive controls with an easy-to-read LCD. Remote runs on one 9V battery (included). No. 137989 has two independent programs that let you set to days of week or watering intervals in 1–99 min. times. Up to eight start times per day. Built-in calendar keeps track of even/odd days and leap years. Easy, one-touch rain delay feature helps you conserve water. Programs with 2AA batteries (included). No. 137992 easily installs to any standard outdoor faucet. Set two dial for start time and watering duration.