The programmer is required to program timer V8 and V9. The programmer is used to select the timer's function and change the timing and other parameters. It is also used to load new and updated functions. Firmware is upgradable to keep the programmer up to date.
Rent a programmer for $0. If you need the programmer for one-time use, return the programmer in 30 days and it will be refunded (not including the shipping fee).
Update the programmer to the latest version via the link below.
