TRM01 Delay Relay Module uses high-quality components and has stable performance and simple operation. It can be used in a variety of control situations that require self-locking delay. The module is preset with 4 functions to meet a variety of application needs and can customize and add other specific functions according to user needs. Features: 1. With delay ON, delay OFF, self-locking and trigger delay function. 2. With power supply anti-reverse function to prevent damage to the module. 4. The delay time can be set arbitrarily between 0.1 seconds and 120 seconds. 5. Parameters can be saved and the setting content will not be lost when the power is turned off. Specification: Working Current: <80mA at 5V (<1mA when relay is not operating) <35mA at 12V (<1mA when relay is not operating) <18mA at 24V (<1mA when relay is not operating) Load Capacity: Working Temperature: -20~60 (limit range -30~70) Size: 60*35*20mm / 2.36*1.38*0.79in Package Weight: Approx. 23g Module Function: The user can select one of the following four functions by pressing the button. The delay time can be selected by adjusting the potentiometer. The delay time T1 can be adjusted between 0.1 seconds and 120 seconds. Function F1: Power-on Delay: After the delay of T1 from the start of power-on, the relay pulls in and outputs a high-level pulse signal to the X1 interface at any time. This function is reset and restarted. Function F2: Power-on Delay Disconnect: The relay is closed when the power is turned on. After T1 time is closed, the relay is disconnected and outputs a high-level pulse signal to the X1 interface at any time. This function is reset and restarted. Function F3: Self-locking Relay Mode: A high-level pulse signal is sent to the relay's X1 interface, the relay is closed, and a high-level pulse signal relay is turned off. Function F4: Level Trigger Mode: When the power is turned on, the relay is disconnected, and a high-level signal is sent to the X1 interface. The relay immediately picks up. After the X1 port signal disappears, the relay still pulls in. When the pull-in T1 arrives, the relay is turned off. Module Interface: 1. DC+: DC power supply positive 2. DC-: DC power supply negative 3. X1: input signal detection interface Relay load output has 3 wiring terminals. 1. COM: relay common interface 2. NO: relay normally open interface 3. NC: relay normally closed interface Package List: 1 * Delay Timer Relay.