Magnetic Float Sensor FS37A (Vertical)

Magnetic Float Sensor FS37A is a compact, reliable, and cost-effective liquid level sensing solution designed for accurate detection of fluid levels in tanks, reservoirs, and containers. Using a proven magnetic reed switch mechanism, this vertical float sensor provides precise ON/OFF level indication without requiring complex electronics or calibration. Its simple design, high durability, and wide compatibility make it ideal for industrial automation, water management systems, and DIY electronics projects.

Engineered for vertical mounting, the FS37A float sensor is easy to install through the top or bottom of a tank, offering flexible orientation and dependable performance. As the liquid level rises or falls, the magnetic float moves along the stem, activating the internal reed switch. This contactless magnetic operation ensures long life, low power consumption, and consistent switching behavior, even in demanding environments.

Key Features of Magnetic Float Sensor FS37A

• Accurate Liquid Level Detection
  Provides precise ON/OFF switching at a preset liquid level, ideal for overflow protection and level monitoring.

• Magnetic Reed Switch Operation
  Non-contact sensing mechanism ensures minimal wear, high reliability, and long operational life.

• Vertical Mounting Design
  Designed for easy vertical installation from the top or bottom of tanks and containers.

• Normally Open / Normally Closed Options
  Switch logic can be changed by reversing the float orientation, offering flexibility in circuit design.

• Compact & Lightweight Construction
  Small form factor allows installation in space-constrained environments.

• Low Power Requirement
  Suitable for battery-powered systems and low-voltage electronic circuits.

• Wide Liquid Compatibility
  Compatible with water, oils, fuels, and other non-corrosive liquids.

• Maintenance-Free Operation
  No external calibration or regular servicing required.

Technical Specifications – Magnetic Float Sensor FS37A

• Model: FS37A

• Sensor Type: Magnetic Float Level Switch

• Mounting Orientation: Vertical

• Switch Type: Reed Switch

• Contact Configuration: Normally Open / Normally Closed (configurable)

• Rated Voltage: Up to 100 V DC (typical)

• Rated Current: Up to 0.5 A

• Switching Power: Up to 10 W

• Operating Temperature: –10°C to +85°C

• Material: High-quality plastic (commonly polypropylene or nylon)

• Thread Type: M10 or equivalent (varies by model)

• Cable Length: Standard lead length (customizable)

• Liquid Compatibility: Water, diesel, light oils, and non-corrosive fluids

Note: Electrical ratings and materials may vary slightly depending on manufacturer or batch.

Applications of Magnetic Float Sensor FS37A

The FS37A vertical magnetic float sensor is widely used across industries due to its simplicity, durability, and accuracy. Typical applications include:

Industrial & Commercial Use

• Water tanks and storage reservoirs

• Coolant and lubrication level monitoring

• Industrial process tanks

• Overflow and dry-run protection systems

Home & Utility Systems

• RO water purifiers

• Automatic water level controllers

• Sump pumps and overhead tanks

• Aquariums and water dispensers

Electronics & Automation Projects

• Microcontroller-based systems (Arduino, Raspberry Pi, PLCs)

• DIY automation and IoT projects

• Liquid level alarms and indicators

Automotive & Machinery

• Fuel level detection

• Hydraulic oil monitoring

• Coolant level sensing

Why Choose the FS37A Magnetic Float Sensor?

The Magnetic Float Sensor FS37A stands out for its robust design, ease of installation, and dependable performance. Unlike complex electronic level sensors, this float switch operates using a simple mechanical-magnetic principle, reducing failure points and ensuring long-term stability. Its low cost and versatility make it an excellent choice for both professional installations and hobbyist projects.

With its compact size, configurable switch logic, and compatibility with a wide range of liquids, the FS37A is an efficient solution for liquid level detection, safety control, and automation. Whether you need to prevent tank overflow, detect low liquid levels, or automate pump control, this sensor delivers reliable results every time.

Upgrade your liquid level monitoring system with the Magnetic Float Sensor FS37A and experience accurate sensing, simple installation, and long-lasting performance.

Package Includes:

1 x Magnetic Float Sensor FS37A (Vertical)

FAQ

1. Where can we buy this Magnetic Float Sensor FS37A?

This product is available online at https://aiiottech.in/product/magnetic-float-sensor-fs37a/ and also available at our store in Pudupakkam/Kelambakkam, Chennai-603103

2. When can I get this Magnetic Float Sensor FS37A after placing the order?

RGRJ AIIoT TECHNOLOGIES will immediately ship and deliver the product within 1-3 working days.

Video Link: How to assemble magnetic float sensors