--- product_id: 389589316 title: "Food Grade Optical Infrared Water Liquid Level Sensor 500mm Cable High Sensibility, Working with Liquid Level Controller(Pack of 3)" brand: "epttech" price: "€ 1.71" currency: EUR in_stock: false reviews_count: 5 url: https://www.desertcart.gr/products/389589316-food-grade-optical-infrared-water-liquid-level-sensor-500mm-cable store_origin: GR region: Greece --- # 5VDC low-power input Β±1 mm ultra-precise sensing 500mm cable for flexible installation Food Grade Optical Infrared Water Liquid Level Sensor 500mm Cable High Sensibility, Working with Liquid Level Controller(Pack of 3) **Brand:** epttech **Price:** € 1.71 **Availability:** ❌ Out of Stock ## Summary > πŸ’§ Elevate your liquid level sensing game with pinpoint precision and effortless setup! ## Quick Answers - **What is this?** Food Grade Optical Infrared Water Liquid Level Sensor 500mm Cable High Sensibility, Working with Liquid Level Controller(Pack of 3) by epttech - **How much does it cost?** € 1.71 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/389589316-food-grade-optical-infrared-water-liquid-level-sensor-500mm-cable) ## Best For - epttech enthusiasts ## Why This Product - Trusted epttech brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Trusted Longevity:** Backed by 20+ years of expertise and a 1-year warranty for peace of mind. - β€’ **Plug & Play Simplicity:** Quick, versatile installation from tank top, bottom, or sideβ€”no hassle. - β€’ **Durability Meets Innovation:** No moving parts means less wear, more reliability over time. - β€’ **Precision Without Compromise:** Achieve Β±1 mm accuracy for flawless liquid level monitoring. - β€’ **Universal Liquid Compatibility:** Works seamlessly with water and a broad range of liquids. ## Overview This Food Grade Optical Infrared Water Liquid Level Sensor features Β±1 mm accuracy and a 500mm cable for flexible installation. Designed without moving parts, it ensures high reliability and durability while working with various liquids. Operating at 5VDC with analog output, it’s ideal for precise, maintenance-free level detection in any tank size. Backed by over 20 years of liquid detection expertise and a 1-year warranty. ## Description Optical water level sensor can be used to replace mechanical type float switch with better level control accuracy and durability. Main Feature : - Compact in construction - No mechanical moving parts, high reliability - High precision level control - Meet the safety standard requirements - RoHS compliant-Easily mounting method with locking nut. - Equipped with 500mm cable length. - Voltage input : 5VDC (Remark : resistors should be added and connected in series, detail may refer to technical specification.) - Analog output Review: I was surprised at how effective these are and how easy they are to use with an Raspberry Pi Pico 2 W. I made a 3D printed cone to fit into a netcup space for hydroponics. When the water drops below the bottom of the netcup level the sensor triggers from wet to dry. Here is the CircuitPython code: # Minimum FS-IR02B Water Level Sensor Code import board import digitalio import time print("=== WATER LEVEL SENSOR - MINIMUM CODE ===") # Setup water level sensor on GP6 water_sensor = digitalio.DigitalInOut(board.GP6) water_sensor.direction = digitalio.Direction.INPUT water_sensor.pull = digitalio.Pull.UP print("Water level sensor ready on GP6") print("Hardware connections:") print("- VCC: Connect to 3V3 (Pin 36)") print("- GND: Connect to GND (Pin 38)") print("- Signal: Connect to GP6 (Pin 9)") print("") try: while True: # Read sensor (True = water present, False = no water) water_present = not water_sensor.value # Inverted logic if water_present: print("Water detected!") else: print("No water detected") time.sleep(1) # Check every second except KeyboardInterrupt: print("Stopped") except Exception as e: print("Error: " + str(e)) Review: These work great ## Features - They have no moving parts and are ideal for point level sensing of water and other liquids. - Installation is simple and quick through the tank top, bottom or side. - The sensor offers Β±1 mm accuracy and broad liquid compatibility. - They are suitable for high, low or intermediate level detection in practically any tank, large or small. - Cable length 500mm.Input 5VDC,Analog output,XH2.5 connector - 1 YEARS WARRANTY:EPTTECH has provided liquid detection solution for over 20 years.1 years gurranty for longterm service. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B075R6SSHJ | | Brand Name | EPTTECH | | Customer Reviews | 4.4 4.4 out of 5 stars (59) | | Item Weight | 0.12 Kilograms | | Manufacturer | EPTTECH | | Material Type | Plastic | | Maximum Supply Voltage | 5 Volts (DC) | | Measurement Accuracy | 1 mm | | Measuring Range | 500 mm | | Model | EPTTECH | | Mounting Type | Surface Mount | | Output Type | Analog | | Sensing Distance | 500 Millimeters | | Specific Uses For Product | industrial automation, water treatment plants, food processing industries, chemical industries, pharmaceutical manufacturing | | Style Name | Modern | | UPC | 658126545365 | | Upper Temperature Rating | 25 Degrees Celsius | ## Product Details - **Brand:** EPTTECH - **Item weight:** 0.12 Kilograms - **Material:** Plastic - **Maximum supply voltage:** 5 Volts (DC) - **Style:** Modern ## Images ![Food Grade Optical Infrared Water Liquid Level Sensor 500mm Cable High Sensibility, Working with Liquid Level Controller(Pack of 3) - Image 1](https://m.media-amazon.com/images/I/61JqEnDJ40L.jpg) ![Food Grade Optical Infrared Water Liquid Level Sensor 500mm Cable High Sensibility, Working with Liquid Level Controller(Pack of 3) - Image 2](https://m.media-amazon.com/images/I/31JOQ9ZBdvL.jpg) ![Food Grade Optical Infrared Water Liquid Level Sensor 500mm Cable High Sensibility, Working with Liquid Level Controller(Pack of 3) - Image 3](https://m.media-amazon.com/images/I/51GSbgLcV6L.jpg) ![Food Grade Optical Infrared Water Liquid Level Sensor 500mm Cable High Sensibility, Working with Liquid Level Controller(Pack of 3) - Image 4](https://m.media-amazon.com/images/I/411zkDCL1IL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by J***E on 25 August 2025* I was surprised at how effective these are and how easy they are to use with an Raspberry Pi Pico 2 W. I made a 3D printed cone to fit into a netcup space for hydroponics. When the water drops below the bottom of the netcup level the sensor triggers from wet to dry. Here is the CircuitPython code: # Minimum FS-IR02B Water Level Sensor Code import board import digitalio import time print("=== WATER LEVEL SENSOR - MINIMUM CODE ===") # Setup water level sensor on GP6 water_sensor = digitalio.DigitalInOut(board.GP6) water_sensor.direction = digitalio.Direction.INPUT water_sensor.pull = digitalio.Pull.UP print("Water level sensor ready on GP6") print("Hardware connections:") print("- VCC: Connect to 3V3 (Pin 36)") print("- GND: Connect to GND (Pin 38)") print("- Signal: Connect to GP6 (Pin 9)") print("") try: while True: # Read sensor (True = water present, False = no water) water_present = not water_sensor.value # Inverted logic if water_present: print("Water detected!") else: print("No water detected") time.sleep(1) # Check every second except KeyboardInterrupt: print("Stopped") except Exception as e: print("Error: " + str(e)) ### ⭐⭐⭐⭐⭐ Review *by P***S on 1 February 2023* These work great ### ⭐⭐⭐ Review *by M***E on 30 November 2020* After a week, sensor work and not work ..... ## Frequently Bought Together - Food Grade Optical Infrared Water Liquid Level Sensor 500mm Cable High Sensibility, Working with Liquid Level Controller(Pack of 3) - AEDIKO 4pcs DC 5V Relay Module - 1 Channel Relay Switch Board with Optocoupler Isolation, High or Low Level Trigger - ELEGOO 120pcs Multicolored Dupont Wire 40pin Male to Female, 40pin Male to Male, 40pin Female to Female Breadboard Jumper Ribbon Cables Kit Compatible with Arduino Projects --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.gr/products/389589316-food-grade-optical-infrared-water-liquid-level-sensor-500mm-cable](https://www.desertcart.gr/products/389589316-food-grade-optical-infrared-water-liquid-level-sensor-500mm-cable) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-07-07*