2 Pcs NE555 Relay Module Adjustable 0 10 Second Time Delay Relay Module 5V

Features: 1. Turn on the power relay to pull in and off at a fixed cycle of 1 10s. Specifically: after the relay is supplied with 12v power, the relay will not immediately sink. The state of the relay output is: normally open and common conduction, normally closed and public disconnected; wait until the delay is 1 10s (can be adjusted), the relay Released, at this time, the state of the relay output is: normally open and common open, normally closed and common conduction; as long as the module is continuously powered, this state will remain closed and released at a fixed cycle of 1 10s. 2. Delay time is adjustable, (0 10 seconds) . 3. Increase the potentiometer to increase the delay time. 4. Increase the capacitance C1 to increase the delay time. 5. With input power indicator. 6. With relay pull in indicator. 7. Can control AC 220V 10A equipment. (Maximum control device 2000W). 8. With relay freewheeling protection. 9. Delay time formula: T = 1.1RC. For example: Capacitance 100uf resistance 100K T = 1.1 * 100000 * 0.0001 = 11 seconds. Specification: Main chip: NE555 Working voltage: DC 5 volts Size: approx. 6 * 1.7cm 2.4 * 0.7in Weight: approx. 34g Package list: 2 * Relay Module