Water Timers Product One 4-way water distributor and two solenoid valves are included Easy settings in one controller Turn faucet into a 4-zone watering system 2 XAA alkaline battery required ( not included ) How long :1,2,3,4,5,6,7,8....180mins ( every valve can be set alone, but only can setonce ) Frenquency can be set per day, 2,3 ....15 days, week mode Start time can be set 4 cycles It can work with rain sensor #21103 or soil humidity sensor# 21106 (if you buy the rain sensor, please remark send an adapter or send order message ) The 4-zone cannot work independently. After setting a program, the zone will work one by one Controller Specification: Working voltage: DC 3V Battery: 2 XAA alkaline battery Static current: =60uA Drive pulse width: 100ms, pulse height: 18v Low voltage sign blinks at =2.4V Working water pressure: 1-8 BAR Working water temperature: 5-60 degree pleasedont use in a freezeenvironment Remark: If you need the specific manual, please relate to us by order message or conversations, and provide your email , we will send to your email .