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。
2
This machine has a 2 hours auto shutdown function, if need continue to work just press the switch once again.
本机设有2小时自动关机功能，自动关机后如需继续工作只需重按开关一次便可。
3
The Electronic vibration Switch (EVS-2) protects against equipment failure by monitoring velocity-based vibration levels and providing an early warning or shutdown when abnormal vibration is detected.