ESMFS 304 Stainless Steel Miniature Cantilever Finger Float Switch for liquid

It is mainly based on Archimedes' buoyancy principle. When the liquid level changes, the float moves up or down with the liquid level, driving the switch through lever transmission or magnetic coupling to achieve the opening and closing of the circuit. Among them, the mechanical contact float switch directly drives the mechanical contacts to open or close through a lever; the magnetic float switch uses the magnetic force between the magnet inside the float and the reed switch to control the closing and opening of the reed switch.

1. Exclusive Side-Mount Duckbill Design, Super Easy Installation
The unique duckbill-shaped side-mount structure solves the space issues of traditional top-mount designs. It can be installed horizontally on the side of tanks and water tanks without additional brackets. The opening is small and the installation is secure, making it suitable for all types of compact equipment chambers and tanks. It can rotate 180° for easy adaptation to different installation angles, and wiring and installation can be done in one step, allowing even beginners to operate quickly.

2. All Stainless Steel Material, Corrosion-Resistant, Rust-Resistant, and High-Temperature Resistant
Both the main body and the float are made of high-quality SUS304 stainless steel (customizable to SUS316 stainless steel), which is rust-resistant, corrosion-resistant, impact-resistant, and wear-resistant. It has a wide temperature range: the standard model can withstand -10℃ to 120℃, while the high-temperature model can reach 150℃. It resists corrosion from clean water, sewage, light oil, and weak acid-base liquids. It maintains its shape and does not rust over long-term use, adapting to various harsh working conditions.

3. IP68 Fully Sealed Waterproof, Stable Operation When Submerged
Using a fully sealed potting process, the device achieves IP68 advanced waterproof rating and can be fully submerged in liquids for long-term operation. It is moisture-proof, dust-proof, and fog-proof, completely eliminating leakage and short circuits. It operates stably in humid, dusty, or outdoor environments and has a lifespan of over 2 million cycles with an extremely low failure rate.

4. Magnetic Drive with No Wear, Precise and Smooth Operation
Equipped with a high-quality reed switch, it uses pure magnetic and buoyancy triggering without mechanical friction loss. There is no internal power consumption, with responsive and precise triggering, preventing misoperations or float sticking. Both normally open and normally closed contacts are optional, freely matching different control logics such as water supply, drainage, liquid level alarms, and dry burn prevention, with strong compatibility.

5. Complete Specifications, Wide Compatibility
Standard models include common threaded interfaces such as G1/2, M12, M16, and support non-standard customization. It fits various water tanks, water towers, and equipment tanks, compatible with 0-220V AC or DC voltage. It can directly connect to pumps, controllers, and alarm devices without additional modifications, ready for immediate use.