Specification Brand : Generic BulletPoint1 : 【Optimal Working Principle】- Exploit the Dual Ball Switch of our switch for the best performance. It allows lower switches to initiate water inflow and upper ones to stop it, ensuring smooth operation and steady water levels. BulletPoint2 : 【Simplified Operation】- For a 100mm Liquid Water Level Controller, our Dual Ball Switch is your best bet. With its larger stroke and constant pump functioning, it guards against frequent startups while maintaining the demand control range. BulletPoint3 : 【High Sensitivity】- Our High Sensitivity Switch reed tube contacts offer stable operation and come with a 400mm wire for easy connection, promising you high precision and convenience. BulletPoint4 : 【Wide Application】- This Wide Application switch can handsomely control liquid levels in water , pools, sinks, fish , etc., or serve as an alarm switch for upper and lower liquid levels, fully meeting your specific needs. BulletPoint5 : 【Efficient Water Control】- For efficient switch for water , opt for our Stainless Steel Dual Ball Switch. With a simple structure requiring no external power supply or complex circuits, it conveniently governs your liquid levels. IncludedComponents : No ItemName : Generic Switch for Water, Dual Ball Switch with 400mm Wire Stainless Steel 0-220V 100Mm Liquid Water Level Controller for Water, Pools, Sinks, Fish, Generic46fzsp3q2k ItemPackageDimensions_Height : 3 centimeters ItemPackageDimensions_Length : 15 centimeters ItemPackageDimensions_Width : 10 centimeters ItemTypeKeyword : electronic-component-liquid-level-sensors Manufacturer : Generic Material : plastic ModelName : Generic46fzsp3q2k ModelNumber : Generic46fzsp3q2k NumberOfItems : 1 PartNumber : Generic46fzsp3q2k ProductDescription : 1. For Water Control: This dual ball switch has a simple structure that does not require external power supply or complex circuits, providing convenient liquid level control. 2. Working Principle: The normal water inflow process is initiated by the lower switch, the upper switch stops working. Drainage is activated by the upper switch and deactivated by the lower switch. 3. Simple Operation: If the demand control range is large, a combination of 2 switches can be used to provide a larger stroke and ensure that the pump does not start frequently. 4. High Sensitivity: The internal contacts of the water level switch use high sensitivity reed tubes to ensure stable operation, equipped with 400mm wire to ensure convenient connection. 5. Wide Application: This water level switch can be used to control the liquid level of water , pools, sinks, fish , etc., or as an alarm switch for the up and down of the liquid level.