The zanchen  is a beautifully designed Battery Operated Irrigation controller. That was designed with varied landscape environments in mind. The ca1601 controller is ideal for automated operation of Drip and sprinkler systems with the inline irrigation valve. Are you ready to stop watering by hand. Do you need to install a new drip or sprinkler zone and you don't have power or a free station on your existing irrigation controller. Do you have an issue with a buried irrigation wire and a valve that stopped working. No problem. The zanchen ca1601 is the perfect solution to meet your needs. The zanchen ca1601 operates on a single 9V alkaline battery and offers the same features of most traditional irrigation controller. The zanchen ca1601 controller is available with and inline valve in the following sizes: 3/4 inch (part number 076DH) 1 inch (part number 101DH) 1 1/2 inch (part number 150P) 2 inch (part number 200P) This item is designed for installation above grade.