PP Horizontal Float Switch – Liquid Water Level Sensor
PP Horizontal Float Switch – Liquid Water Level Sensor
PP Horizontal Float Switch – Liquid Water Level Sensor
This compact PP Horizontal Float Switch is a simple, reliable, and maintenance-free solution for automatic liquid level control. Built with a polypropylene (PP) float ball and body, it uses a magnetic reed switch mechanism to detect when liquid reaches a set level — triggering an open or closed circuit with no external power source required. Its small footprint, long service life, and compatibility with a wide range of liquids make it ideal for both DIY plumbing projects and industrial applications.
Whether you're monitoring water tanks, sump systems, aquariums, chemical reservoirs, or food-processing equipment, this horizontal float switch delivers dependable on/off switching at the exact level you need.
Made in Mainland China.
How It Works
The float switch houses a sealed magnetic reed switch inside a non-magnetic PP tube. As liquid rises or falls, the buoyant float moves with it. When the float approaches the reed switch, the embedded magnet closes the contacts; as the float moves away, the contacts open. This simple mechanical action allows precise, hands-free level control without complex circuitry.
Key Specifications
- Float Ball Material: Polypropylene (PP)
- Float Body Material: Polypropylene (PP)
- Max Contact Rating: 10W
- Max Switching Voltage: 220V
- Max Switching Current: 0.5A
- Max Breakdown Voltage: 220V DC
- Max Carry Current: 1.0A
- Max Contact Resistance: 100 mΩ
- Operating Temperature Range: -10°C to +60°C
- Switch Orientation: Horizontal (Down)
- Quantity: 1 PC
Key Features
- ✅ No external power required — purely mechanical switching action
- ✅ Compact design — smaller than traditional mechanical switches
- ✅ Long service life — sealed reed switch resists wear and corrosion
- ✅ Versatile compatibility — works with water, chemicals, oils, and more
- ✅ Wide temperature range — suitable for -10°C to +60°C environments
- ✅ Simple installation — horizontal mount, no complex wiring or circuitry
Common Applications
- Home water tanks and sump pumps
- Aquariums and fish tank water management — pair with our 5-Pack Aquarium Suction Cup Clips – Tube & Heater Holders
- Food and beverage processing equipment
- Petrochemical and industrial liquid storage
- Dyeing and finishing machinery
- Hydraulic systems and generating equipment
- Water treatment and plumbing DIY projects — explore our Non-Contact Capacitive Water Level Sensor 3.3V–5V for a no-touch alternative
What's in the Box
- 1 × PP Horizontal Float Switch (Liquid Water Level Sensor)
Looking for other electrical components for your project? Check out our 3-Wire 180° Washing Machine Timer Switch for more appliance control solutions.
Learn more: OSHA on eye and face protection
Frequently Asked Questions
Q: What liquids is this PP float switch compatible with?
A: The polypropylene (PP) construction makes this float switch compatible with water, mild chemicals, oils, and many food-grade liquids. Always verify chemical compatibility with PP material before use in aggressive chemical environments.
Q: Does the horizontal float switch require an external power supply to operate?
A: No. This float switch uses a purely mechanical magnetic reed switch mechanism — it requires no external power source of its own. It simply opens or closes a circuit in your existing system when the float reaches the trigger level.
Q: What does "horizontal / down" orientation mean for installation?
A: "Horizontal" refers to how the float arm is mounted — parallel to the liquid surface rather than vertically submerged. "Down" indicates the switch activates when the liquid level drops to a set point. This makes it ideal for low-level shutoff or alarm triggers in tanks and reservoirs.
Q: What is the maximum voltage and current this float switch can handle?
A: The switch supports a maximum switching voltage of 220V, a maximum switching current of 0.5A, a maximum carry current of 1.0A, and a maximum contact rating of 10W. Ensure your application stays within these ratings for safe and reliable operation.
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.