How to set (Video tutorial): http://files.banggood.com/2018/06/SKU883466.rarFeature:Power supply interface: Power supply voltage: 6V-18V. When using 6V power supply, the current must be guaranteed 1.5A or above.
Relay interface: Using 250V 10A relay, you can directly operate most of the electrical appliances on the market.
SIM Card Socket: Insert SIM card when system powered off. (In China, please use mobile or Unicom card).
LED interface: There are three LED lights named D3 D5 D6 (D5 is close to the positioning hole, D6 is close to the antenna interface). LED indicator state corresponds to the equipment working conditions are as follows, each column is one state.
Package includes:
1 x GSM Relay Control Board
