Searching for a hard working, entry-level residential controller? X-Core is on the case. Hunter"s popular XC controller is now X-Core. Plug in the revolutionary Solar Sync ET sensor and the X-Core is converted into a Smart controller, using advanced water conservation technology and regulating irrigation runtimes based on locally measured weather. Installation and maintenance are simple with Hunter remote capability, accessible through the optional SmartPort®. Control up to 6 stations with 3 programs and 4 start times each. Solar Sync sensor compatible for automatic daily weather-based adjustmentsHunter remote compatibleDay schedule: 7-day calendar or true odd/even programming with 365-day calendar clockEasy Retrieve memory: original program saved in permanent memory and retrieved at any timeSeasonal adjust: 0% to 150%Programmable sensor input by stationProgrammable rain delay from 1 to 7 daysProgrammable delay between stationsRain sensor bypass switchOne button manual start and advanceProgrammable event day off allows specific day(s) to be designated as always "off"Hunter Quick CheckTM helps troubleshoot field wiring issuesElectronic short circuit detection3 V lithium battery (included) for remote programming and timekeeping, not required for program backup