Long Distance Automatically Water/ Oil Tank Monitoring and Control Solution
This solution is suitable for the tank far away the Pump Motor, the water level detector can use other types. Also, the user can use the SMS Command to switch on or switch off the Pump motor when use the independent output relay. This solution is suitable for lots of other similar monitoring applications.

Explanation:
1) Use the water level detector ( WL-04) to detect the water level, it can detect the low level and high level, two wires for low
level, connecting to input 1, two wires for high level, connecting to input 2.
2) Set the SIMCard Number in B side GSM SMS Controller as the first SMS Alarm number in A side GSM SMS Controller,
and modify the SMS Alert content as 1234CC ( 1234 stands for password) to input 1, 1234DD to input 2. So when Low
level detected, the A side GSM SMS Controller will send 1234CC command to B side GSM SMS Controller to switch ON
the Pump, when high level detected, will send 1234DD to B side GSM SMS Controller to Switch OFF the Pump. Means
the A side alarm SMS message as the B side GSM SMS Controller Command.