Mini Float Switch DC 220V Water Level Sensor for Fish Tanks
Mini Float Switch DC 220V Water Level Sensor for Fish Tanks
BS Mini Float Switch – Right Angle Liquid Water Level Sensor
Keep your fish tank, sump, or reservoir perfectly managed with the BS Mini Float Switch. This compact, right-angle liquid level sensor automatically detects water levels and triggers connected devices — pumps, alarms, or valves — the moment water rises or drops to your set point. Made from durable polymer and designed for versatile mounting, it's an ideal solution for aquariums, hydroponics, water storage tanks, and industrial fluid control.
Made in Mainland China.
Key Features
- Wide Voltage Compatibility: Supports DC and up to 220V AC systems for broad application flexibility.
- Right Angle Design: Space-saving right-angle float arm fits neatly inside tight tank walls or narrow reservoirs.
- Switching Transducer Output: Delivers a clean on/off signal — easy to integrate with pumps, alarms, or controllers.
- Inductance Sensor Technology: Reliable position detection with no moving contacts to corrode or wear out quickly.
- Polymer Construction: Lightweight yet durable material resists moisture and chemical exposure common in aquatic environments.
- Mini Compact Size: Low-profile form factor suits fish tanks, water dispensers, humidifiers, and more.
- No High-Concern Chemicals: Declared free of restricted substances for safer use around aquatic life.
Specifications
| Material | Polymer |
| Operating Voltage | DC / Up to 220V AC |
| Output Type | Switching Transducer |
| Sensor Type | Inductance / Position Sensor |
| Float Orientation | Right Angle |
| High-Concern Chemicals | None |
| Origin | Mainland China |
Common Applications
- Fish tanks & aquariums – auto top-off or overflow protection
- Hydroponics & plant watering systems
- Water storage tanks & sumps
- Humidifiers & water dispensers
- Industrial fluid monitoring & control panels
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Frequently Asked Questions
Q: What is a mini float switch and how does it work?
A: A mini float switch is a compact liquid level sensor with a buoyant arm that rises and falls with the water surface. When the water reaches a set level, the float arm triggers the internal switching transducer to open or close an electrical circuit — automatically activating or deactivating a connected pump, alarm, or valve without any manual intervention.
Q: Is this float switch safe to use in a fish tank with live fish?
A: Yes. The BS Mini Float Switch is made from polymer and declared free of high-concern chemicals, making it suitable for use in aquariums and fish tanks. Always ensure wiring connections are properly waterproofed and that voltage ratings match your setup before installation.
Q: What voltage does this water level sensor support?
A: This mini float switch is compatible with DC circuits and supports up to 220V AC, making it suitable for a wide range of home, aquarium, and light industrial applications. Always verify the voltage of your specific system and connect accordingly to ensure safe and reliable operation.
Q: What does "right angle" mean for a float switch?
A: A right-angle float switch has its float arm positioned perpendicular (at a 90° angle) to the body of the switch. This design allows it to be mounted on the side wall of a tank or reservoir while the float moves up and down with the water level — ideal for compact tanks like aquariums where space is limited.