Specifications: Type: DC5V,0-15min/DC5V,0-60min/DC12V,0-15min/DC12V,0-60min/DC24V,0-15min/DC24V,0-60min (Optional)Max. Load Capacity: 10A250VAC, 10A30VDCSize: 70x20mm / 2.75x0.78"Time Error: <2%Package Includes:1 x Timer Relay Module Performance: When jumper OP1: 1s to 100s, the adjustment accuracy is 0.1s.When jumper 0p2: 1s to 15min, accuracy 1s.The delay error is less than 2% under various temperature and humidity. T1(the relay turn on delay time), T2(the relay turn off delay time) Once Mode(Jumper OP3): 1. The module Power-on, When triggered the relay is switched on, delay T1, and the relay disconnected.2. When triggered on the delay process, again triggered, it will immediately interrupt the delay. Cycle Mode(Jumper OP4): 1. The module Power-on, When triggered the relay is switched on, delay T1,and the relay is disconnected, delay T2, the relay is switched on again. Such cycle. T1 and T2 are set by two adjustable resistors, respectively.2. When triggered on the delay process, again triggered, it will immediately interrupt the delay. How to Set Time Quickly: Time can be quickly set by measuring voltage(Uc) of resistor. Take a 5V 15min module as example. If Uc=2V, time=2V/5V*15min=6min.Special note: trigger button is not necessary. If you need to power up, start the cycle instead of pressing the button. Then, please short the trigger wire of the connect button directly. Adjustable "on" time and "off" time: It is a timer relay module with high precision, stable and reliable performance.Support 2 modes, mon mode(once) and cycle mode, and you can simply switch mode by adjusting the jumper.There are many voltage and time range for your choice, both "on" time and "off" time are adjustable. It is great to control the reciprocating stroke, or repetitive power on and off for equipment and products burn-in test. Widely used on timer operating equipment, machine repetitive test circuit, fish tank intermittent pump, etc. Typical application reference: Time limited working equipment, such as automatic power-off after 5 minutes of triggering each key.The machine repeats the test circuit, such as power on for 1 minute and power off for 1 minute.