Aihasd Modulo relè a 2 canale SMS GSM Telecomando Interruttore SIM800C STM32F103CBT6 per Pompa di ossigeno effetto serra

Voltage:9V-36V, when using 9V Power supply, the current need above 1A. 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 D6 D7 (D7 is close to the positioning hole, D6 is close to the antenna interface). LED indicator state corresponds to the equipment working conditions are as the picture,pleae chekc the "picture 5", each column is one state. Application:Farmland irrigation;Greenhouse;Server room;Pet feeding;Oxygen pump;Roller shutter