Description: 4-channel multi-function relay control module, using industrial-grade high-quality components, carefully designed and processed, stable performance, simple operation, can be widely used in various power control applications. The module presets up to 20 kinds of functions, uses 8-36V wide voltage power supply design, and adds the linkage function of each channel, users can freely combine many new applications, such as sequential linkage, cycle linkage and so on. Features: With 4 channels of input and output control, each channel can be set to 20 kinds of functions to meet more application requirements. DC 8v-36v wide voltage input, with the function of power anti-reverse connection, will not damage the module due to wrong power connection. With power indicator light and relay suction indicator light. At least 1 second timing function can be set, accurate timing, error less than 1%. Add automatic power saving function. All setting options can be automatically saved, the content of set won't lost when power off. Trigger signal input sup ports user selection, high level or low level pulse triggering. Key Function: Menu 1: F--X Long press SET to enter menu 1, short press "+ -" to adjust X to 0 ~ 3, corresponding to 1~4 channels Short press SET to enter menu 2, short press "+ -" to select X channel related Settings (0-7) Menu 2: X--0 Function selection (00) Short press SET to enter, short press "+ -" to SET parameters 0 ~ 19, corresponding to function 1 ~ function 20 X--1 T1 Hour (000) Short press SET to enter, short press or long press "+ -" to SET T1 hours (0-255) X--2 T1 Minute (00) Short press SET to enter, short press or long press "+ -" to SET T1 minutes (0-59) X--3 T1 Second (00) Short press SET to enter, short press or long press "+ -" to SET T1 seconds (0-59) X--4 T2 Hour (000) Short press SET to enter, short press or long press "+ -" to SET T1 hours (0-255) X--5 T2 Minute (00) Short press SET to enter, short press or long press "+ -" to SET T1 minutes (0-59) X--6 T3 Second (00) Short press SET to enter, short press or long press "+ -" to SET T1 seconds (0-59) X--7 Cycle times (0000) Short press SET to enter, short press or long press "+ -" to SET the number of cycles (0-9999) Press SAVE to return or SAVE to exit Electric Parameter: Working voltage: recommended DC 8v-36v (extreme working voltage DC 6v-45v) Rated power: Static power less than 0.1W Dynamic power is less than 1.5W Working temperature: recommended - 20 ℃ to 60 ℃ (limit working temperature range - 30 ℃-70 ℃) Load capacity: Normally open port: DC 0-30V /10A, AC 0-250V /10A Normally closed port: DC 0-28V /10A, AC 0-125V /10A Module Port: Module voltage/signal input terminal: there are 8 line interfaces, all of which have terminals for user convenience VIN: DC positive pole GND: DC negative pole OFF: Power control terminal COM: Pommon end of photoelectric isolation signal input IN1-IN4: Input signal detection interface Relay load output: 12 - wire interface, all interfaces have terminals Note: The input signal detection interface can be either active-high or active-low. The user can select via COM port. If COM is connected to H, IN1-IN4 is active high, if COM is connected to L, IN1 -IN4 is active low! Specifications: Material: ABS Size: Approx. 85 x 75mm / 3.35 x 2.95in Weight: Approx. 88g Package List: 1 x Relay Module .