["1. Application: For controlling the smooth running of radiotube, water pump, electrical machinery, strip lights, etc.\r\n\r\n2. Overview: This's a programmable digital countdown timer, ranging 0.1s - 999h. You can set 2 groups of for time T1 and T2. With this timer, you can achieve following effect, \r\na. You can let your instrument start to work or stop working after a specific for time. Choose T1 / T2 =0. \r\nb. You can let your instrument work intervally. That's let it work for some for time, then stop for another for time, then start to work again... \r\nc. You can choose your instrument stop working for some for time, then start to work for another for time. After that, it'll stop and never start to work again. \r\n\r\n3. Function list:\r\nP1--1: The relay switch on, after a delay of T1 for time.\r\nP1--2: The relay switch off, after a delay of T1 for time.\r\nP1--3: After a delay of T1 for time, the relay switches on; then, the relay switches off after a delay of T2 for time. Done.\r\nP1--4: After a delay of T1 for time, the relay switches off; then, the relay switches on after a delay of T2 for time. Done.\r\nP1--5: After a delay of T1 for time, the relay switches on; then, the relay switches off after a delay of T2 for time. The cycle will be repeated.\r\nP1--6: After a delay of T1 for time, the relay switches off; then, the relay switches on after a delay of T2 for time. The cycle will be repeated.\r\n\r\n4. Operation instructions:\r\nSet key: Hold it down for 2 seconds to enter the function settings. Press it to switch between function code and set parameter for them.\r\nPlus: Add Time\r\nMinus: Minus Time\r\nConfirm key: Start/Stop\r\n\r\n5. Use decimal point to set unit description:\r\nXX.X The decimal point is in tenth, for time range: 0.1 second ~ 99.9 seconds\r\nXXX No decimal point, for time range: 1 second ~ 999 seconds\r\nXXX. The decimal point is at the end, for time range 1 minute ~ 999 minutes.\r\nXX.X. One decimal point is at the end, the other in tenth, for time range 1 hour ~ 999 hours.\r\n\r\n6. Specification:\r\nMaterial: PCB + Plastic\r\nType: Time-Dalay Relay\r\nOutput Power: For Controlling for DC/AC Load Within 5A\r\nfor Time Setting Range: 0s - 999hours\r\nOptional Working Voltage(for DC): 5V, 12V, 220V\r\nSize: 79 x 42 x 28mm(3.11 x 1.65 x 1.10in)\r\nQuantity: 1 Pc\r\n\r\n7. Note:\r\nDue to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!\r\n\r\n8. Package includes:\r\n1 x Time-Dalay Relay"]