PP Corrosion-Resistant Float Switch for Liquid Level Detection & Control

Keep tanks, sumps, reservoirs, and fluid systems running safely with this dependable PP (Polypropylene) Float Switch. Built from chemically resistant polypropylene, this liquid level sensor automatically detects high or low water levels and triggers pumps, alarms, or valves — making it an essential component for aquariums, sump pumps, water tanks, industrial fluid management, and DIY automation projects.

Its corrosion-resistant construction ensures long-lasting performance even in harsh or chemically active fluids, giving you reliable level detection without constant maintenance. Available in two size options (small and big) to suit a variety of tank dimensions and installation requirements.

Key Features

Corrosion-Resistant PP Material: Polypropylene body withstands water, mild chemicals, and humid environments for long service life.
Automatic Level Detection: Float mechanism rises and falls with the liquid surface to open or close the circuit automatically.
Two Size Options: Choose small or big to match your tank or reservoir setup.
Wide Application: Ideal for water tanks, aquariums, sump systems, industrial tanks, irrigation systems, and DIY electronics projects.
Easy Installation: Simple wiring and mounting — ready to use right out of the box.
Customizable: Suitable for integration into custom control circuits and automation setups.
Each Order Includes: 1× PP Float Switch (SMD included).

Specifications

Material: Polypropylene (PP)
Available Sizes: Small / Big
Function: Liquid level detection and pump/valve control
Customized: Yes

Perfect For

Home and garden water tanks
Aquariums and fish pond systems
Sump pump automation
Industrial fluid monitoring
DIY electronics and Arduino/Raspberry Pi projects
Irrigation and hydroponics setups

Frequently Asked Questions

Q: What is a PP float switch and how does it work for liquid level control?

A: A PP float switch is an electromechanical device made from polypropylene (PP) that floats on the surface of a liquid. As the liquid level rises or falls, the float tilts and opens or closes an internal electrical circuit. This signal can automatically activate or deactivate a pump, valve, or alarm — making it a key component for hands-free liquid level management in tanks, sumps, and reservoirs.

Q: What liquids is this corrosion-resistant float switch compatible with?

A: Thanks to its polypropylene (PP) construction, this float switch is resistant to water, mild acids, and many common chemicals. It is well-suited for freshwater tanks, aquariums, irrigation systems, and light industrial fluid applications. Always verify chemical compatibility with your specific fluid before installation in highly aggressive chemical environments.

Q: Which size should I choose — small or big?

A: The size you choose depends on your tank dimensions and the mounting space available. The small size is ideal for compact tanks, aquariums, and tight installations, while the big size suits larger reservoirs and industrial containers. If you are unsure, measure your installation space and compare it to the product dimensions before ordering.

Q: Can this float switch be used in DIY electronics or automation projects?

A: Yes! This float switch is fully compatible with DIY automation setups including Arduino, Raspberry Pi, and other microcontroller-based projects. Its simple open/close electrical output makes it easy to integrate into custom control circuits for water level alerts, automatic pump control, or fluid management automation.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.