Specifications:Timing range: 0-999s 0-999m 0-999h.Supply voltage: AC110V-220V.Relay: 20A.Working current: 10A(max).Power: 500W(max).Size: 79*26*43mm.Hole size: 72*40mm.Instructions:Please pay attention for your first use. You need wait 6s after your setting data, the module will save the date you have set after 6s.Short press button SET: If you start the time setting mode , Nixie tube will blink. You could adjust the time T1 and T2 by button+ and button-. Please wait 5s after your setting date, the module will save the date you have set after 5s.Long press button SET: if you start the parameter setting mode. There are two group parameter for your choice: P0 and P1. You could switch P0 or P1 by short press SET. Under the parameter P0 and P1,you could set the timing mode by the button+ and button-.P0--0: Timing time mode: 0---999s.P0--1: Timing time mode: 0---999min.P0--2: Timing time mode: 0---999h.P1--0: The relay will connect after you delay the T1 time.P1--1: The relay will disconnect after you delay the T1 time.P1--2: The relay will connect after you delay the T1 time first, Then the relay will disconnect after you delay the T2 time, it finish.P1--3: The relay will disconnect after you delay the T1 time first, Then the relay will connect after you delay the T2 time, it finish.P1--4: The relay will connect after you delay the T1 timefirst, Then the relay will disconnect after you delay the T2 time, it is cyclic.P1--5: The relay will disconnect after you delay the T1 time first, Then the relay will connect after you delay the T2 time, it cyclic.Example: A customer needs 10 seconds to start up and 20 seconds off. Setup is as follows:T1 set time 10, T2 set time 20.P0 -- 0 (T1 time range is seconds).P1--5 (timer work mode).Package Included:1 x Digital Display Time Relay