Introducing an advanced relay module, equipped with 10 high-performance relays and SMD optocoupler isolation technology for strong driving capability and stable performance.
With a fault-tolerant design, these reliable electrical relays will remain stationary even if the control line is broken.
The module boasts a trigger current of just 5mA, making it highly efficient. Additionally, its …

Are you tired of struggling with faulty optocouplers ?
Explore the OptoTester, the game-changing solution to all your optocoupler testing needs. Measuring at a compact 2.7CM*3.7CM, this bargain-priced module board is made with high-quality 1.6MM FR-4 board material for reliable and accurate testing.
With the OptoTester, you'll never have to worry about faulty optocouplers again. This prov…