4 Channel 5V Opto Isolated Relay Module is a simple relay board. 4 channel relay board works from a 5V supply to JVCC for the relays and 0V for the switching signal to relays activate. It uses a transistor to drive the relay & optocoupler used to separate the output. Using these relay board you can easily control high power DC 30V/AC 250V devices or appliances using arduino or microcontroller. It can be connected directly to a microcontroller pin. It has 3 pin terminals each relay output NO COM NC. NO normally open with relay common pin. NC Normally connected with common.
- You can get the product from our office
- Home delivery is also available
- Delivery charge: Inside Dhaka-60 Taka, outside Dhaka-99 Taka
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- In case of delivery outside Dhaka, customers may have to collect certain products from the nearby courier service office.
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