The GARDENA Comfort Irrigation Control System 4040 modular serves the automatic control of larger irrigation systems, usually of pop-up irrigation systems, such as the GARDENA Sprinklersystem. The Comfort Irrigation Control System 4040 modular is ideally suited for when the water quantity is insufficient for simultaneously operating the entire system – normally comprising several irrigation systems. Also with varying water requirements of individual plant areas, the 4040 modular controls the individual watering intervals per channel and thereby allows individual and optimal irrigation. The Comfort Irrigation Control System 4040 modular is designed for the connection of four Irrigation Valves 24 V (Art. No. 1278-20) and can be extended with the Comfort Expansion Module 2040 (Art. No. 1277-20) up to 12 valves. For extremely flexible irrigation programming, up to four programmes can be saved per valve. The watering days and -cycles can be freely selected, the watering duration can be set for between one minute and 4 hours 59 minutes and is also centrally adjustable from 0 to 200%. If irrigation is to be started immediately, it can also be manually activated. The programming itself is user-guided and thereby totally easy. Through the master channel, the GARDENA Pump Control System (Art. No. 1273-20) can be connected and a pump can thereby be controlled as an alternative water source. Practical: the GARDENA Comfort Irrigation Control System 4040 modular can be used indoors and outdoors, and has a 230 V-power connection. To ensure that the Irrigation Control System always operates reliably and securely, power failure protection is possible through a 9 V alkaline battery (battery not included). If desired, a GARDENA Rain- or Soil Moisture Sensor can be connected for water-saving operation.