Photoelectric Liquid Level Sensor Module High Accuracy Water Level Detector for Water Tanks Arduino Raspberry Pi ESP32 IoT Automation and Industrial Monitoring

A precision liquid level detection sensor designed for reliable monitoring of water, beverages, chemicals, and other compatible liquids in tanks, reservoirs, and automated systems. Utilizing advanced photoelectric sensing technology, this sensor provides highly accurate liquid level detection without mechanical moving parts, ensuring long-term stability, minimal maintenance, and excellent reliability.

Its compact design and corrosion-resistant probe make it suitable for a wide range of industrial, commercial, and DIY automation projects. Compatible with popular development platforms such as Arduino, Raspberry Pi, ESP32, and other microcontroller systems, it is ideal for smart water management, IoT monitoring, liquid dispensing systems, and automated level control applications.

Product Specifications

• Product Type: Photoelectric liquid level sensor
• Model: FS-IR02 (DFRobot Gravity Series)
• Detection Method: Optical / photoelectric liquid level sensing
• Operating Voltage: 5V DC
• Output Type: Digital signal output
• Output Current: 12 mA
• Low-Level Output Voltage: < 0.1V
• High-Level Output Voltage: > 4.6V
• Detection Accuracy: ±0.5 mm
• Measuring Range: No limit
• Operating Temperature: -25°C to 105°C
• Material: PC (Polycarbonate)
• Sensor Dimensions: 28 × 28 mm
• Cable Length: 450 mm
• Weight: 26 g
• Expected Service Life: Up to 50,000 hours
• Compatibility: Arduino, Raspberry Pi, ESP32, STM32, IoT controllers
• Installation Type: Tank wall / container mounting
• Function: Liquid presence and level detection
• Application: Water tanks, reservoirs, beverage systems, automation equipment, smart monitoring systems, IoT projects
• Features: High sensitivity, no moving parts, corrosion resistance, low maintenance, compact design, long service life