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1, the module complies with international safety standards, the load control area and regional isolation tank;
2, using loose music authentic relay;
3, with the power and relay instructions, pull off, disconnect does not shine;
4, when the input signal is a signal, often beginning with a common terminal will be turned on;
5, can be used as a microcontroller development board module that can be used as home appliance control;
6, the control DC or AC signal, you can control 220V AC load;
7, there is a normally open and one normally closed contact;
8, blue KF301 terminals to the control line is more convenient.
About the high and low trigger description.if you don’t understand .pls check below
Means there is a high trigger voltage trigger, can be understood as a way to signal input terminal and VCC between the positive short trigger signal input and ground;
Refers to a low voltage trigger signal input terminal and ground for OV trigger mode, can be understood as a way to signal input terminal and GND short circuit triggered the negative
USD 1.90-1.96/pieceUSD 3.14/setUSD 15.60-16.80/setUSD 1.45/pieceUSD 1.96/setUSD 1.25/setUSD 2.25/setUSD 3.40/piece
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|Shipping Company||Shipping Cost||Estimated Delivery Time|
|3 - 7 days|
|3 - 7 days|
|5 - 14 days|
|Post Air Mail||Free Shipping||15 - 45 days|
|Return Policy||If the product you receive is not as described or low quality, the seller promises that you may return it before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe) and receive a full refund. The return shipping fee will be paid by you. Or, you can choose to keep the product and agree the refund amount directly with the seller.
N.B.: If the seller provides the "Longer Protection" service on this product, you may ask for refund up to 15 days after order completion.
|Seller Service||On-time DeliveryIf you do not receive your purchase within 60 days, you can ask for a full refund before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe).|