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on vidio Floatless Relay Connection| Floatless Relay | Floatless Level Switch |

A floatless relay is a type of  water level sensor a device used to detect the level of liquid within a water tank the switch may be used to control a pump as an indicator an alarm or to control other devices one type of floatless relay uses a mercury switch inside a hinged float.
 

A floatless relay is a type of  water level sensor a device used to detect the level of liquid within a water tank the switch may be used to control a pump as an indicator an alarm or to control other devices one type of floatless relay uses a mercury switch inside a hinged float.
 

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