This timer is a timer-Siri-zu that regulates the whole return and the collection time. Both the total return and the collection time can be set independently, and can be set between 0.1 seconds and 9990 hours (digital type).
Time specifications are combined with set numbers and time units, so that many operation functions can be selected, so it can be used as a general-purpose timer in addition to plant operation, distillation equipment, etc.