Through-hole photoelectric water flow sensor

Main Features:

This series of plug‑in optical flow sensors is a non‑contact fluid‑detection device based on infrared optical sensing. It features a transparent PC‑tube housing and incorporates built‑in infrared transmitting and receiving components. When the pipeline is empty or the fluid is stationary, the infrared beam undergoes total internal reflection at the transparent tube wall, resulting in no signal at the receiver. As fluid flows past the sensor, the refractive properties of the light change, enabling the receiver to detect a signal and thereby providing real‑time monitoring of fluid flow or liquid level. With no moving mechanical parts, the sensor is resistant to clogging and wear, ensuring long‑term stable operation, making it an ideal solution for flow and level detection in various liquid‑handling systems.

Enquiry

Category:

Water Flow & Water Level Sensors

Keyword: Through-hole photoelectric water flow sensor

DETAILS DOWNLOAD

Key Features

No mechanical moving parts : Based on a purely photoelectric detection principle, it features no impeller, float, or other wear-prone components, making it resistant to clogging and ensuring a long service life with zero maintenance.
Integrated Design of Transparent Pipelines : Made from food-grade transparent PC material, it features a standard hose‑to‑fit direct‑plug connection for easy installation, with no additional seals and minimal risk of leaks.
Fast response, high sensitivity : Responds rapidly to fluid flow and level changes, capable of detecting low‑velocity fluids and providing real-time feedback on pipeline conditions.
Low-power, stable operation : Utilizes low-power optoelectronic components, supports a wide input voltage range of 3.3–5 V, and is compatible with various small devices and control systems.
Highly reliable corrosion resistance : The transparent housing is resistant to acid and alkali corrosion, suitable for detecting water and mildly corrosive liquids, and meets the requirements of long-term continuous operation.
Easy-to-integrate standardized interface Standard configuration includes a PH2.54 connector and a three-wire signal output, enabling direct connection to an MCU or PLC control system for rapid integration.
Environmental Compliance Support : Compliant with RoHS and REACH environmental standards; food-grade materials are suitable for potable water equipment, meeting safety and regulatory requirements.

Typical application scenarios

Home appliance sector : Water flow and liquid-level detection for water purifiers, water dispensers, coffee machines, sparkling water makers, and ice makers.
Medical equipment sector : Flow/level monitoring of liquid lines in hemodialysis machines, infusion pumps, nebulizers, and disinfection equipment.
Industrial control field : Liquid flow detection and dry‑run protection for small cooling systems, cleaning equipment, and inkjet printers.
Smart home sector : Water‑line status monitoring and low‑water alarm for smart toilets, smart water heaters, and humidifiers.
Other scenarios : Dry‑burn protection for small liquid pipelines, liquid flow detection, and equipment operating‑status monitoring.

Technical Specifications

Detection principle: Infrared photoelectric refraction type
Pipe material: Food-grade transparent PC
Compatible pipe diameter: Standard φ6mm hose (other specifications available upon request)
Operating voltage: DC 3.3–5 V
Operating current: ≤20 mA
Output signal: Digital switch signal (high/low level)
Response time: <100 ms
Operating temperature: 0°C to +60°C
Liquid Compatibility: Water, weakly corrosive transparent liquids (non-turbid / bubble-free)
Interface type: PH2.54 3-pin connector, standard configuration includes red, yellow, and black leads.
Environmental Compliance: RoHS and REACH compliant; food-grade contact materials are in compliance.

Customized Services

We offer end-to-end customized services and, based on your application scenarios and design requirements, can provide the following tailored solutions:

Customization of pipe dimensions and materials to suit various pipe diameters and liquid‑medium requirements.
Output signal format (NPN/PNP, high/low level definitions) and targeted optimization of the supply voltage.
Customizable lead lengths and connector type compatibility, enabling direct interface integration with customer equipment.
We offer mass production and rapid delivery services, along with comprehensive technical support, product selection solutions, and test reports, helping customers efficiently develop equipment‑level fluid‑path status‑monitoring capabilities.

ENQUIRY

If you have any good suggestions and comments on our company, or want to consult our products, please fill in the form below, and we will contact you at the first time!