SOLAR IRRIGATION AND SPRINKLER CONTROLLERBRXCTRSLR1 - BRAZIXNo external power needed.Power supplied by built in Solar PanelJUST SET IT AND LET IT WORK !!No battery changes !!CONNECT IT TO A GARDEN FAUCET OR A PIPE- Microcomputer controlled, Solar powered, watering and irrigation controller- LCD display with function panel- It can be used for pressure irrigation, gravity irrigation and dripping irrigation.- Working temperature: 2-40ºC- Working pressure: 0-50 PSI- Standby consumption: 0.002 A- Accuracy: less than 0.25 second per day- Water inlet size: 3/4” with 1/2”adapter- water outlet size: 1/2”- Irrigation frequency: can be controlled through preset program. Up to eight designated groups of irrigation modes can be scheduled to open/close the valve. It can also be set to a random loop group in any date and in this case it can be set to 3 hours, 6 hours, 12 hours or from 1 day to 30 days to loop and control the irrigation function.- Irrigation times: - Events can be programmed from one minute to nine hours and fifty-nine minutes. - Cycle time (random loop mode) is from three hours to thirty days. - Manually operate ON/OFF function. - Rain off (manual override)- Power Pack: Three AAA rechargeable batteries (not included) maintained by built in Solar Panel.- Part Number: BRXCTRSLR1