1 Channel SMS Relay Module Call GSM Remote Control Switch SIM800C STM32F103CBT6 with Case for Greenhouse Oxygen Pump FZ3024C

1 Channel Relay Module SMS Call GSM Remote Control Switch SIM800C STM32F103CBT6 with Case for Greenhouse Oxygen PumpDescription:
Power supply voltage: 5V-12V. When using 9V or less power supply, the current must be guaranteed 1.5A or aboveRelay interface: The output is the passive switch quantity. Using 250V 5A relay, the maximum power is 1100W, you can directly operate most of the electrical appliances on the marketSIM Card Socket: Insert SIM card when system powered offSwitch quantity interface: XH2.54-2P. When the two pins are connected, it will trigger the SMS alarmKey: Press the key can change the status of relay when device is power on. Press key when device is power off, then power on, and press the button for 5 seconds, the device will be back to factory setting. And the led indicators will show this statusLED interface: There are 2 LED lights named D5 D6. LED indicators state corresponds to the equipment working conditions are as follows, each column is one state.How to use:
1) Insert a SIM card, Connect the antenna and power.
2) Wait until system is in the status of “Ready, can receive configure SMS”, then send SMS command to set the author number, and then wait until system in the status of “Ready, can receive control relay SMS” according to the LED indicator
3)You can send SMS command or make a call to control relay