
Y27B Thin Tube Liquid Level Sensor
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The Y27B Thin Tube Liquid Level Sensor is an intelligent, non-contact solution designed for liquid level detection in small tubes. With easy installation and high precision, it is ideal for medical, industrial, and smart appliance applications.
Category: Non-contact Liquid Level Sensors
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Description
Key Features
- Non-Contact Sensing: Detects liquid levels using capacitive sensing technology without direct contact, ensuring safety and hygiene.
- Compact and Flexible Design:
- Suited for small tubes with outer diameters ranging from 3mm to 10mm.
- Card tube design eliminates the need for additional fixtures like cable ties.
- Versatile Output Options:
- High and low-level outputs for varied requirements.
- NPN switch output for seamless integration with control systems.
- Wide Power Compatibility: Operates with DC 5–24V, accommodating diverse power supply configurations.
- Intelligent Signal Processing: Utilizes advanced algorithms to ensure accurate detection, even with minimal capacitance changes.
- Robust and Reliable:
- PC V0 fireproof material for durability.
- CE and ROHS-2.0 certified for safety and environmental compliance.
Application Areas
- Medical Equipment: Infusion tube monitoring and fluid detection.
- Biotechnology: Accurate liquid detection in laboratory settings.
- Smart Appliances: Water dispensers, coffee machines, and more.
- Industrial Use: Liquid level detection in small-diameter industrial tubes.
- Educational and Research Tools: Liquid monitoring for experiments and demonstrations.
Technical Specifications
| Parameter | Specification |
|---|---|
| Input Voltage (Vin) | 5–24V DC |
| Consumption Current | 3.5mA |
| Output Method | High/low level, NPN |
| Output Current | ≤100mA |
| Response Time | 500ms |
| Working Temperature | -20°C to 85°C |
| Pipe Outer Diameter (OD) | D3=3mm, D4=4mm, D6=6mm, D8=8mm, D10=10mm |
| Humidity | 5%–80% |
| Material | PC V0 fireproof |
| Certifications | CE, ROHS-2.0 |
Advantages
- Ease of Installation: No need for additional fixtures or cable ties.
- Accurate and Stable: High-speed signal processing ensures reliable detection.
- Hygienic and Durable: Non-contact operation avoids contamination, and fireproof materials enhance durability.
- Versatile Compatibility: Works with a wide range of small tubes and power configurations.
The Y27B Thin Tube Liquid Level Sensor is a compact, efficient, and intelligent solution tailored for precise liquid level detection in small tubes across medical, industrial, and smart device applications.





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