Drought Switch: Automatic shutdown and alarm when water supply is interrupted to protect the pump.
干旱开关：自动关机和报警时，供水中断，保护泵。
Power switch for controlling power supply meter box-off and normal shutdown operation.
电源开关用于控制仪表箱电源的通断和正常停机操作。
Power switch for controlling power supply meter box-off and normal shutdown operation.
电源开关用于控制仪表箱电源的通断和正常停机操作。
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