Features Multiple Functions: Time Delay Relay Module Add Power Prevent Reverse Function, Output Optocoupler Isolation, Enhance Interference Resistant Power Consumption. Industrial Grade Circuit Board, Set Parameters After Power Memory Forever, Ensure Stability. Rotatable Mode: After Turning on, Press And Hold K1 for 2 Seconds to Enter The Selection Function Mode, Which Can Be Selected from P1‑1 to P1‑4 P1‑2 Operating Mode: When The Relay Pulls in Y to Disconnect, The Signal Triggers The Start Time of X Time. The User Can Set The Time When The Relay Pulls in X And Y, Similar to P1‑1. The Blue Light on Indicates The Time When The Relay Is off P1‑3 Working Mode: Open for X Seconds, Disconnect for Y Seconds, Infinite Cycle. The User Can Set The Time X And Y of The Relay. The Time Setting Is Similar to P1‑2. Press K1 to Enter The Fine Tuning Settings of This Function, Start X, Turn off Y Seconds P1‑4 Working Mode: The Signal Trigger Relay Draws But Does Not Start Timing, The Trigger Signal Disappears And Starts Timing T. When The Time Is up, The Relay Closes; During The Delay, The Signal Is Given Again, The Delay Is Cancelled Specification: Item Type: Time Delay Relay Module Working Voltage: DC 12V Static Current: 20mA Working Current: 50mA Signal Source: Positive trigger, PNP, high level effective Output Capacity: Can control DC30V 10A or AC250V 10A or less equipment Service Life: > 100,000 Times Package List: 1 x Time Delay Relay Module Package List 1 x Time Delay Relay Module