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Visit store Items for sale About us Product Details Product Parameters: Product Size: 45 * 28mm working voltage: DC5V Communication to WIFI ESP8266 module Serial communication parameters: 9600.8, 1.0, 0 transmission distance: maximum transmission distance 400 m (open environment, mobile phone equipped with WIFI module) load: 10A / 250VAC 10A / 30VDC, relay pull 100,000 times way of working: mobile phone equipped with WiFi module; cellular phone and WiFI module with the same router, through the APP phone to control the relay; this mode, the transmission distance depends on the router signal. tips: The ESP8266 module has a timeout mechanism, when the phone for a certain time (default 180 S) did not give instructions to the module, the module will reset the phone, the computer can send AT + CIPSTO = <> time change this time (Time range 0-7200), such as: AT + CIPSTO = 3600. when the module on the WIFI module is disconnected, USB to the module of the TTL RX, TX, GND pin have been connected to the RX, TX, GND pin, IN +, IN-5 V supply module, then the module can be used as a USB Relay to use, scalability. Note: this item is without ESP8266 Board Shipping List: 1 X DC5V Relay Module Payment Method Shipping Policy Feedback Payment Method Payment must be received in 5 business days of auction closing. Please leave note for your special request (e.g. Colors or Size) when you pay the order. Any special request cannot be accepted after 24 hours of payment, because most of orders will be processed instantly and same day dispatched. Shipping Policy 1. We only ship to the confirmed address provided by eBay. please make sure your ebay address is 100% matches the address you would like us to ship to. If not, please let us know before we sent you the package, or we will not be responsible for any loss. hope you could understand. 2. Orders will be processed instantly and dispatched within 1-3 business days except hoilday, so we do NOT accept any email/message note after you place orders. 3. All package need to wait 30 days,Please take care it.Less than 30 days,we can't take a refund. Feedback We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important to us. We request that you keep in touch with us immediately BEFORE you give us neutral or negative feedback, so that we can satisfactorily address your concerns.