Float Sensor Switch For Water Level Controller

SKU: IS2TTGADFC
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4.5 (66 reviews)
The Float Sensor Switch for Water Level Controller is a simple and reliable liquid-level detection device designed to monitor the presence or level of water and other compatible liquids inside tanks, containers, reservoirs, and storage systems. The sensor uses a magnetic float and internal reed switch mechanism to provide an electrical ON/OFF signal when the liquid level rises or falls....
Regular price Rs. 129.00
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The Float Sensor Switch for Water Level Controller is a simple and reliable liquid-level detection device designed to monitor the presence or level of water and other compatible liquids inside tanks, containers, reservoirs, and storage systems. The sensor uses a magnetic float and internal reed switch mechanism to provide an electrical ON/OFF signal when the liquid level rises or falls.

As the liquid level changes, the floating element moves along the sensor stem. A magnet inside the float activates the sealed reed switch located inside the stem, changing the electrical contact state. This simple operating principle provides reliable level detection without requiring complex electronic circuitry or continuous power for the sensing mechanism.

The float switch is commonly used with water-level controllers, relays, contactors, pumps, alarms, Arduino, ESP32, STM32, and other control systems. Depending on installation orientation, many float switch designs can be configured for Normally Open (NO) or Normally Closed (NC) operation by reversing the float position. It is suitable for automatic tank filling, pump protection, overflow prevention, low-water alarms, and liquid-level monitoring projects.

Key Features

  • Simple water and liquid level detection
  • Magnetic float and reed switch operating mechanism
  • Provides digital ON/OFF switching signal
  • No external power required for the sensing contact
  • Compact and lightweight construction
  • Suitable for automatic water-level control
  • Can be used for high-level or low-level detection
  • Supports pump ON/OFF control through a suitable relay or controller
  • Sealed internal reed switch
  • Low contact resistance
  • Simple two-wire electrical connection
  • Easy installation in tanks and containers
  • Suitable for vertical mounting
  • Compatible with microcontrollers and control circuits
  • Useful for overflow and dry-run protection systems
  • Suitable for domestic, agricultural, and industrial applications

Shipping & Returns

Orders placed before 3 PM IST will be shipped on the same day (excluding Sundays and Public holidays) through our shipping partners. In rare cases, the pickup may get delayed during Public holidays / Bandh / Environmental disturbances.

Specifications

Specifications:

Sensor Type: Magnetic Float Level Switch
Measurement Type: Point-Level Detection
Detection Medium: Water and Compatible Liquids
Sensing Mechanism: Magnetic Float with Reed Switch
Output Type: Dry Contact / Digital ON-OFF Switching
Contact Type: Normally Open or Normally Closed, Depending on Float Orientation and Model
Number of Wires: 2
Operating Voltage: Switching-Circuit Dependent
Typical Maximum Switching Voltage: Up to 100V DC on Common Low-Power Models
Typical Maximum Switching Current: Approximately 0.5A
Typical Maximum Contact Rating: Approximately 10W
Contact Resistance: Typically Less Than 100mΩ
Insulation Resistance: Typically Greater Than 100MΩ
Sensor Power Requirement: None for Basic Reed Contact Operation
Mounting Orientation: Vertical
Mounting Thread: Model Dependent
Body Material: PP, POM, Nylon, or Stainless Steel, Depending on Variant
Float Material: Plastic or Stainless Steel, Depending on Variant
Operating Temperature: Typically -10°C to +80°C for Common Plastic Versions
Cable Type: Two-Wire Lead
Cable Length: Model Dependent
Detection Method: Contact Switching at a Fixed Liquid Level
Compatibility: Water Level Controllers, Relay Circuits, PLCs, Arduino, ESP32, STM32, Raspberry Pi GPIO, PIC, AVR and other digital-input control systems

Additional Resources

FAQ

1. What is the Float Sensor Switch used for?

The float sensor switch is used to detect high or low liquid levels in tanks, reservoirs, containers, and water systems. It is commonly used for automatic pump control, overflow prevention, low-water alarms, and tank-level monitoring.

2. How does a Float Sensor Switch work?

The sensor contains a movable float with an internal magnet. As the liquid level rises or falls, the float moves and activates a sealed reed switch inside the sensor stem, changing the electrical contact state.

3. Can the Float Sensor Switch directly control a water pump?

Most small float switches are designed for low-power signal switching and should not directly control a high-current pump. A suitable relay, contactor, or motor controller should be used between the float switch and the pump.

4. Can the Float Sensor Switch be used with Arduino and ESP32?

Yes. The float switch can be connected to a digital input on Arduino, ESP32, STM32, Raspberry Pi, PIC, AVR, and other controllers using a suitable pull-up or pull-down configuration.

5. Does the Float Sensor Switch require a power supply?

The basic sensing mechanism does not require a power supply because it operates as a magnetically activated reed switch. However, the monitoring circuit, microcontroller, relay, or water-level controller connected to it will require its own power source.