Rainmaker irrigation systems and controllers for golf course irrigation. The RM-2 Rainmaker irrigation controller provides a solution for large scale irrigation applications. Providing both remote connectivity and water balance control, the RM-2 is a very powerful and scalable irrigation controller. The RM-2 comes with both an Ethernet and an integrated 4G modem providing remote access via your smartphone, tablet, PC or centralised monitoring system. The unit is configured using its own web interface, enabling the user to set up watering stations and program times.