How is the CloudRain Valve switched on / off?

The CloudRain Valve has a button on the front, top right, that is used to turn the valve on or off.

Please take a look at the picture below: To switch the valve on press the button for briefly 1 second. To turn off, please press and hold the button for approximately 5 seconds until the LED lights up in solid red. then release the button.

Switch off CloudRain Valve