XKC-Y25-NPN Waterproof Non-Contact Liquid Level Sensor (DC 5–12V)

The XKC-Y25-NPN Waterproof Non-Contact Liquid Level Sensor detects liquid levels through the outside wall of non-metallic containers without touching the liquid. Operating from DC 5–12V, it provides a reliable NPN switching output for water tanks, automation systems, smart appliances, and industrial liquid monitoring.

Description

The XKC-Y25-NPN Waterproof Non-Contact Liquid Level Sensor is an intelligent capacitive sensing device designed to detect liquid levels without direct contact with the liquid. Mounted on the outside of non-metallic containers such as plastic, glass, or ceramic, it provides accurate liquid level detection while eliminating contamination and mechanical wear.

Powered by DC 5–12V, the sensor features an NPN output, low power consumption, and an IP67 waterproof enclosure, making it suitable for industrial automation, water treatment systems, beverage machines, medical equipment, laboratory instruments, and smart home water monitoring. Depending on the module version, it can detect through non-metallic container walls up to approximately 13 mm thick.

Key Features

• Non-contact liquid level detection
• Waterproof IP67 housing
• Operates from DC 5–12V
• NPN switching output
• Detects through plastic, glass, and ceramic containers
• No direct contact with liquid
• Suitable for clean and corrosive liquids
• Low power consumption
• Strong anti-interference performance
• Compact and easy-to-install design

Technical Specifications

Note: Specifications such as wall thickness, housing material, and communication options may vary slightly between manufacturers and module revisions.

Typical Uses

The XKC-Y25-NPN sensor is commonly used for water tank monitoring, automatic filling systems, coffee machines, beverage dispensers, laboratory equipment, medical devices, industrial automation, chemical storage tanks, RO water systems, and smart home liquid level monitoring.

Applications

Water Management

• Water Storage Tanks
• RO Water Systems
• Automatic Water Filling
• Water Dispensers

Industrial Automation

• Chemical Tanks
• Process Control
• Industrial Equipment
• Factory Automation

Smart Appliances

• Coffee Machines
• Beverage Machines
• Water Purifiers
• Home Automation

Embedded Systems

• Arduino Projects
• ESP32 Projects
• Raspberry Pi Projects
• PLC Systems
• STM32 Development Boards

Compatibility

Compatible with:

• Arduino Uno, Nano, Mega
• ESP32 Development Boards
• Raspberry Pi GPIO (with appropriate interfacing where required)
• STM32 Development Boards
• PLC Controllers
• Relay Modules
• Automation Controllers
• DC 5V–12V control systems

Package Includes

• 1 × XKC-Y25-NPN Waterproof Non-Contact Liquid Level Sensor

Important Notes

• Designed for non-metallic containers only.
• Not suitable for metal tanks because the sensing signal cannot penetrate metal walls.
• Mount the sensor firmly against a clean container surface with minimal air gap for reliable detection.
• Verify the output logic and wiring before connecting to your controller.
• Ensure the supply voltage matches the sensor specification.

Why Buy from Chip.pk

• Genuine embedded and industrial automation components
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Frequently Asked Questions (FAQs)

1. What is the XKC-Y25-NPN Non-Contact Liquid Level Sensor?

The XKC-Y25-NPN Waterproof Non-Contact Liquid Level Sensor is a capacitive liquid level sensor that detects liquids through the outside wall of non-metallic containers without direct contact with the liquid.

2. How does the XKC-Y25-NPN sensor work?

The sensor uses capacitive sensing technology to detect the presence or absence of liquid through plastic, glass, and ceramic container walls. It provides an NPN switching output when liquid reaches the sensing position.

3. What operating voltage does this sensor support?

The XKC-Y25-NPN operates on DC 5V to 12V, making it suitable for many embedded and industrial control systems.

4. Can I use this sensor with Arduino?

Yes. The NPN output can be interfaced with Arduino Uno, Nano, Mega, and other compatible microcontrollers using the appropriate wiring.

5. Is the sensor compatible with ESP32 and Raspberry Pi?

Yes. It can be used with ESP32, Raspberry Pi, STM32, PLCs, and other controllers that accept digital input signals. Depending on the controller, a pull-up resistor or suitable interface circuit may be required.

6. Can this sensor detect liquid through metal containers?

No. The XKC-Y25-NPN is designed for non-metallic containers such as plastic, glass, and ceramic. It will not function correctly through metal walls.

7. Is the sensor waterproof?

Yes. The sensor housing is typically rated IP67, making it suitable for use in damp and industrial environments. However, always protect the cable connections from water exposure.

8. What liquids can this sensor detect?

The sensor can detect many common liquids such as water, beverages, oils, and other conductive or non-conductive liquids, provided the container material and wall thickness are within the supported range.

9. What are the common applications of this sensor?

It is commonly used in water tanks, RO systems, coffee machines, beverage dispensers, laboratory equipment, medical devices, industrial automation, and smart liquid monitoring systems.

10. Is this sensor suitable for DIY and industrial projects?

Yes. The XKC-Y25-NPN is suitable for DIY electronics, IoT projects, robotics, automation systems, and industrial liquid level monitoring.