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Gravity: Photoelectric High Accuracy Liquid Level Sensor

Reference RBD-3093

Brand DFRobot

Gravity: Photoelectric liquid level sensor with ±0.5mm accuracy
Optical detection method – no moving parts, less calibration needed
Corrosion-resistant probe handles high temperature and pressure
Compatible with Arduino, Raspberry Pi, Intel Edison, and more
Plug-and-play with Gravity interface adapter
Long lifespan of 50,000 hours for reliable monitoring

Description
Product Details

Description

The Gravity: Photoelectric High Accuracy Liquid Level Sensor (FS-IR02) uses optical principles to provide precise liquid level detection with ±0.5mm accuracy. Unlike mechanical float-based sensors, this photoelectric sensor has no moving parts, reducing calibration needs and improving durability. The corrosion-resistant PC probe can withstand high temperatures (up to 105°C) and high pressure, making it ideal for demanding environments. With a working voltage of 5V and an output signal of <0.1V (low) and >4.6V (high), the sensor offers stable and accurate readings. It connects easily to Arduino, Raspberry Pi, Intel Edison, and other platforms via the Gravity 3-pin plug-and-play interface or an Arduino IO expansion shield. Compact, durable, and long-lasting with a 50,000-hour service life, this sensor is perfect for smart water control systems, IoT monitoring, and industrial applications where precise liquid level detection is essential. Featured By RoboticsBD.

Product Images are shown for illustrative purposes only and may differ from the actual product.

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Features:

High Accuracy – ±0.5mm liquid level detection precision.
No Moving Parts – Optical sensing reduces wear and calibration needs.
Durable Construction – Corrosion-resistant PC material withstands harsh conditions.
High Temperature & Pressure Tolerance – Operates from -25°C to +105°C.
Easy Integration – Gravity interface supports Arduino, Raspberry Pi, and more.
Stable Output – Clear low (<0.1V) and high (>4.6V) voltage signals.
Long Service Life – Up to 50,000 hours of reliable operation.
Compact Size – 28 × 28mm module with a 450mm cable.

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Applications:

Smart Water Systems – Monitor and control water levels in tanks.
Industrial Monitoring – Detect liquid levels in pipes, boilers, and machinery.
IoT Projects – Integrate with microcontrollers for smart liquid sensing.
Environmental Studies – Track water levels in research and fieldwork.
Home Automation – Use in aquariums, water dispensers, and appliances.
Safety Applications – Prevent overflow or dry-run in liquid systems.

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General Specifications
Model	FS-IR02
Type	Photoelectric Liquid Level Sensor
Operating Voltage	5V DC
Output Current	12mA
Low Level Output	<0.1V
High Level Output	>4.6V
Detection Accuracy	±0.5mm
Material	PC (corrosion resistant)
Measuring Range	Unlimited
Operating Temperature	-25°C to +105°C
Service Life	50,000 hours
Dimensions	28 × 28 mm
Cable Length	450mm
Module Weight	26g
Shipment Weight	0.0249 kg
Shipment Dimensions	11 × 6 × 2 cm

Please allow 5% measuring deviation due to manual measurement.

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Documentation:

Liquid Level Sensor

Connection Diagram

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Installation

Note: Avoid placing the sensor near bright lights or in direct sunlight as these can cause interference.

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Documents

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Package Includes:

1 x Gravity: Photoelectric High Accuracy Liquid Level Sensor

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Product Details

Reference RBD-3093

In stock 13 Items

Specific References

EAN13: 3093

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Gravity: Photoelectric High Accuracy Liquid Level Sensor

Features:

Applications:

Documentation:

Liquid Level Sensor

Connection Diagram

Installation

Note: Avoid placing the sensor near bright lights or in direct sunlight as these can cause interference.

Documents

Package Includes:

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