Low water level sensors & tank full sensors are included so the pumping system can be fully automated. With sensors installed, the pump will switch off if the header tank is full or if the water source has fallen below the pump intake. Easy installation, maintenance-free, safe and reliable. Compact structure, high-lift, noiseless, non-pollution, complete electrical protecting controller device. Material of parts of solar submersible pump for irrigation.Solar submersible pump for irrigation body: stainless steel. Solar submersible pump for irrigation body:stainless steel. Impeller of solar submersible pump for irrigation:stainless steel. Motor:Brushless DC Pump Motor. The pump controller drives the high efficiency brushless DC pump motor, utilising the latest Maximum Power Point Tracking (MPPT) technology to ensure maximum flow is delivered under all light conditions. Electronic monitoring gives the controller the capability to monitor the system and automatically shut. Down in the event of. Dry well conditions - with low level switch. Bound pump - with auto-reversing torque. Water tower water level probe.