Shenzhen Hi-Link Electronic Co., Ltd.  

Product Name: Paypal Accept 4 Channels WiFi Relay Control Switch Hlk-Sw04 Model NO.: HLK-SW04 Type: Electric Parameter Relay Action Principle: Electronic Type Load: Medium Power Relay Electricity Type: Dc Usage: Household Appliances Relay Theory: Voltage Relay Frequency Range: 2.4-2.4835g Serial Port Baud Rate: 1200~3000000BPS Channel Number: 1-11 Transmitting Power: 15-20 dBm Connect Port: 1 USB,1 USB Port(Host),Gpio Antenna Type: Plate-Borne Antenna/External Antenna Working Temp: -20-70