1Pcs 100‑400mm Stainless Steel Dual Ball Float Switch Water Level Sensor for Tank Reliable Detection

Stainless Steel Vertical Float Lever Switch 100 mm Key benefits Reliable liquid level detection for tanks and vessels using a simple, proven mechanical design. Stainless steel construction resists corrosion and supports longer service life in water and many chemical environments. Compact, lightweight, and easy to install for fast integration into existing systems. Reversible switch operation and vertical mounting allow detection of either rising or falling liquid levels by installing at the or base of the tank. Suitable for triggering pumps, indicators, alarms, or other control devices when used with appropriate relays or controllers. What it does and why you need it This float lever switch senses the liquid level and closes or opens its contact as the float moves. It provides a straightforward way to automate level control, prevent overflow, or protect pumps from dry running. Its simple structure and reliable performance make it a practical choice for industrial, commercial, and residential liquid level applications. Key features and specifications Material: Stainless steel Color: Silver Size: 100 mm (this listing includes 1 piece) Other sizes available: 100 mm, 150 mm, 200 mm, 250 mm, 300 mm, 350 mm, 400 mm Installation: Vertical mounting Thread diameter: 10 mm / 0.39 inch Wire: PTFE temperature line Working voltage: 0 to 220 V Max switching voltage: 240 V AC Max breakdown voltage: 220 V DC Max contact rating: 10 W / 50 W Max switching current: 0.5 A Max carry current: 1 A Max contact resistance: 100 mΩ Operating pressure: 10 kg/cm Max pressure: 0.2 MPa Applicable proportion: 0.75 Operating temperature: 10 to +120 C Switch operation: Reversible Installation and operation notes Mount vertically either at the or the base of the tank depending on whether you need to detect rising or falling liquid. The switch output can directly interface with lowpower indicators and controls, but it is recommended to connect it in series with a small relay or use a PLC to drive motors, pumps, or lighting loads. Momentary inrush current when a device starts can damage switch contacts if used without appropriate relay or controller protection. Ensure proper sealing and thread engagement when installing to maintain pressure rating and prevent leaks. Practical applications Water storage tanks: Automatically start or stop a pump to maintain a set water level and prevent overflow. Wastewater and drainage systems: Detect or low levels to trigger alarms or control sump pumps. Chemical processing and industrial equipment: Provide level feedback to control systems where stainless steel compatibility is required. Package contents 1 x Float lever switch Material: Stainless steel Color: Silver Size included: 100 mm Compatibility and performance Designed for broad use in electronic, electrical, chemical, water treatment, and drainage applications. Verify electrical and pressure specifications against your system requirements before installation. Caution Must be connected in series with a small relay or controlled through a PLC when driving motors, pumps, or bulbs. Although steady current may be small, starting current can be and may burn out internal switch contacts if used directly.