SKU: SENS-1402
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FS-IR02B Photoelectric Water Level Sensor - 14mm Diameter, Polycarbonate, 5V DC

₹339.00 (Inclusive of all taxes)
Out of Stock

The FS-IR02B is a compact photoelectric water level sensor designed for reliable liquid detection in 3.3V/5V microcontroller systems like Arduino and Raspberry Pi. Its 14mm diameter polycarbonate probe offers corrosion resistance and is suitable for high-temperature and high-pressure environments up to 105°C.

Features

  • Photoelectric sensing principle for non-mechanical, low-maintenance operation.
  • Corrosion-resistant polycarbonate probe rated for high-temperature and high-pressure applications.
  • Compact 14mm diameter design for easy integration into tanks, reservoirs, and industrial systems.
  • 5V DC operating voltage with 12mA output current for direct compatibility with common logic levels.
  • Wide operating temperature range from -25°C to +105°C for harsh environment reliability.

Out of stock

Description

The FS-IR02B photoelectric water level sensor operates on an optical principle, using infrared light to detect the presence or absence of liquid at its tip. This non-contact method eliminates mechanical moving parts, reducing wear and minimizing the need for recalibration. The sensor provides a simple digital or analog output signal indicating liquid level status.

Constructed from durable polycarbonate, the 14mm diameter probe is resistant to corrosion from many liquids and can withstand operating temperatures from -25°C to 105°C. The sensor is designed for integration into water tanks, industrial liquid containers, HVAC systems, and automated irrigation controls, providing reliable level monitoring without direct liquid contact with electronic components.

Key Features

  • Optical photoelectric sensing ensures high reliability and long operational lifespan.
  • Polycarbonate housing provides excellent chemical resistance and durability.
  • Compact 14mm diameter probe facilitates installation in confined spaces.
  • Wide temperature tolerance from -25°C to 105°C for challenging environments.
  • Simple interface compatible with 3.3V/5V microcontroller GPIO or ADC inputs.
  • Non-mechanical design eliminates issues with sticking, fouling, or mechanical wear.
  • Low 12mA output current minimizes power consumption in continuous monitoring applications.
  • High-pressure rated construction suitable for pressurized liquid systems.

Applications

  • Residential and commercial water tank level monitoring and pump control.
  • Industrial liquid storage tank level detection in chemical processing plants.
  • HVAC system condensate pan overflow prevention and leak detection.
  • Automated irrigation system reservoir level monitoring for agricultural controls.
  • Laboratory equipment liquid level sensing in autoclaves and sterilization systems.

Technical Specifications

Model NumberFS-IR02B
Sensor TypePhotoelectric Liquid Level Sensor
Operating Voltage5V DC
Output Current12mA
Operating Temperature-25°C to +105°C
Probe MaterialPolycarbonate
Probe Diameter14mm
Sensing PrincipleOptical (Infrared)
Output TypeDigital/Analog (compatible with DFRobot Gravity interface)

Frequently Asked Questions

What is the operating voltage range for the FS-IR02B sensor?

The FS-IR02B photoelectric water level sensor is designed for 5V DC operation. It can be powered directly from Arduino 5V pins, Raspberry Pi (with appropriate level shifting), or other 5V microcontroller systems. The sensor draws approximately 12mA during operation.

How does the photoelectric sensing principle work for liquid detection?

The sensor uses an infrared LED and phototransistor pair inside its polycarbonate tip. When submerged in liquid, the light refraction changes, altering the phototransistor's output. This creates a clear digital signal indicating liquid presence without mechanical contact, ensuring reliable operation with minimal maintenance.

What types of liquids can the FS-IR02B sensor detect?

The polycarbonate construction provides good chemical resistance against water, many aqueous solutions, and non-aggressive liquids. However, for highly corrosive chemicals or solvents that attack polycarbonate, consult material compatibility charts. The sensor is suitable for temperatures from -25°C to 105°C and can handle pressurized systems.

How should I mount and wire the FS-IR02B sensor?

The 14mm diameter probe can be mounted through tank walls using appropriate fittings. Electrical connection is typically via the included interface adapter compatible with DFRobot Gravity connectors or direct wiring to signal, power, and ground pins. Avoid installing near bright light sources to prevent optical interference with the infrared sensing element.

Package Includes

  • 1 x FS-IR02B Photoelectric Water Level Sensor

Additional Information

Weight 0.012 kg
Dimensions 10 × 6 × 2 cm