Instruction Manual: 1. After setting the data, wait 6 seconds; the module automatically saves the set data. 2. Press the SET key once to enter the time setting mode. The red LED flashes. Press the key to increase or decrease the setting time T1. 3. After setting time T1, short press the SET key again. The green LED flashes, and press the key to set time T2. After completing T2 setting, press the SET key again. The system automatically saves the settings, or wait 6 seconds for the module to save the data automatically. 4. Long press the SET key to enter parameter setting mode. There are two parameter sets: P0 and P1. Short press SET to switch between P0 and P1. 5. In P0, press the key to adjust the timing mode. In P1, press the key to select the working mode. P0-0: T1 timing unit is seconds P0-1: T1 timing unit is minutes P0-2: T1 timing unit is hours P1-0: Delay T1 time, relay pulls in (T1 timer) P1-1: Relay releases after T1 delay (T1 timer) P1-2: Delay T1 time, relay pulls in (T1 timer), then relay releases after T2 delay (T2 timer), cycle ends P1-3: Relay releases after T1 delay (T1 timer), then delay T2 time, relay pulls in (T2 timer), cycle ends P1-4: Delay T1 time, relay pulls in (T1 timer), then relay releases after T2 delay (T2 timer), continuous cycle P1-5: Relay releases after T1 delay (T1 timer), then delay T2 time, relay pulls in (T2 timer), continuous cycle Specifications: Timing range: 0-999 seconds, 0-999 minutes, 0-999 hours Relay: 20A Operating current: 10A (maximum) Power rating: 1500W (maximum) Dimensions: 79 x 26 x 43mm (2.99 x 1.02 x 1.69 inches) Panel cutout size: 72 x 40mm (2.83 x 1.57 inches) Type: Time Relay Contact Load: Low Power Model Number: Digital Time Delay Relay Usage: Voltage: AC 110-220V Color: Grey Material: Plastic Package Contents: 1 x Dual Display Delay Relay Note: Other items not included. Note: Lighting and display differences may cause slight color variation. Measurement error allowed is +/- 1-3cm.