Sensor - Rain-Clik vs Mini-Clik

On the other hand, the Rain-Clik has the Quick Response feature that commands a controller to shut off immediately right when it starts to rain so no rainfall has to be accumulated before the switch is activated and interrupts the circuit from the controller to shut off the system. Their prices are about the same; therefore, it is up to your preference whether to get a Mini-Clik or a Rain-Clik. 

The difference between the Mini-Clik and the Rain-Clik is that the Mini-Clik adjusts for rainfall of 1/8" to 1". As the moisture-laden disks expand, they will eventually activate a switch that interrupts the circuit from the controller to the solenoid valves.