---
product_id: 57818324
title: "Food Grade Optical Infrared Water Liquid Level Sensor 500mm Cable High Sensibility, Working with Liquid Level Controller(Pack of 3)"
brand: "epttech"
price: "812895₫"
currency: VND
in_stock: null
reviews_count: 8
url: https://www.desertcart.vn/products/57818324-food-grade-optical-infrared-water-liquid-level-sensor-500mm-cable
store_origin: VN
region: Vietnam
---

# 5VDC analog output, plug & play ±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:** 812895₫
**Availability:** ❌ Out of Stock

## Summary

> 💧 Stay ahead of the flow with precision you can trust!

## 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?** 812895₫ with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/57818324-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

- • **Plug & Play Power:** Seamlessly integrates with 5VDC systems and microcontrollers for instant setup.
- • **Precision at its Peak:** Experience pinpoint ±1 mm accuracy for flawless liquid level detection.
- • **Triple Pack Advantage:** Get 3 sensors in one pack—ideal for multi-tank monitoring or backup.
- • **Durable & Maintenance-Free:** No moving parts means long-lasting reliability and zero hassle.
- • **Versatile Mounting Options:** Install top, bottom, side—perfect for any tank size or shape.

## Overview

EPTTECH’s Food Grade Optical Infrared Water Liquid Level Sensor delivers ultra-precise ±1 mm accuracy with a 500mm cable and 5V analog output. Designed for versatile mounting and broad liquid compatibility, this maintenance-free sensor is perfect for professional-grade water level monitoring in any tank. Backed by 1 year warranty and 20+ years of expertise, it’s the smart choice for reliable, easy-to-install liquid sensing.

## Description

Product description Product Dimension Unit:mm Installation Bottom Mount Slope Mount Above Mount Side Mount Product Applications Dishwasher Water Dispenser Water Heater Humidifier Product Composition 3pcs Photoelectric Sensor Test Board USB Cable Specification

Review: Surprisingly easy to use. - 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: Awesome! - These work great, they output 5v when fully submerged which is great to trigger relay modules if you don't want to use a microcontroller.

## 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 ±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 |
| Best Sellers Rank | #292,160 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #165 in Liquid Level Sensors |
| Brand | EPTTECH |
| Brand Name | EPTTECH |
| Customer Reviews | 4.4 out of 5 stars 61 Reviews |
| Item Weight | 0.12 Kilograms |
| Manufacturer | EPTTECH |
| Material | Copper |
| Material Type | Copper |
| Maximum Supply Voltage | 5 Volts (DC) |
| Measurement Accuracy | 1 mm |
| Model | EPTTECH |
| Mounting Type | Flange Mount |
| Output Type | Analog |
| Sensing Distance | 500 Millimeters |
| Style | Modern |
| Style Name | Modern |
| UPC | 658126545365 |
| Upper Temperature Rating | 30 Degrees Celsius |

## Product Details

- **Brand:** EPTTECH
- **Item Weight:** 0.12 Kilograms
- **Material:** Copper
- **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

### ⭐⭐⭐⭐⭐ Surprisingly easy to use.
*by J***E on August 25, 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))

### ⭐⭐⭐⭐⭐ Awesome!
*by A***Y on October 5, 2025*

These work great, they output 5v when fully submerged which is great to trigger relay modules if you don't want to use a microcontroller.

### ⭐⭐⭐⭐⭐ Waterproof water level sensor
*by J***H on November 28, 2023*

The sensor is sealed, you don't have to worry about drilling a tank or bucket if you don't want to. You can just hot glue it on the inside of a bucket or water tank if that is what you want to do and it will be fine. *You must be certain that the type of liquid will not damage the sensor. This sensor is plastic and is NOT for solvents like gasoline or acetone!* This light based water level sensor works great. I just tried it in R/O water and it works as expected. The quality of what I've got here looks good. I am not sure what the board is supposed to be for, perhaps this also makes it a replacement for something else. On Arduino, you can just digitalRead the sensor for a HIGH or LOW value with no board or other components involved. Seems to be highly responsive to its state change. Trivial to code and implement. A great product! *For higher accuracy, use AnalogRead on the sensor (which is 5v) to get a value from around 25-1050. They read very low, under 200 or usually less when wet in R/O water and usually over 1000 out of water. I use 500 as my threshold and it works great.

## Frequently Bought Together

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-02-25*