Multi-Stage Detection Logic
This digital liquid level sensor uses optical refraction to detect liquid levels at multiple points.
Dry State (No Liquid): The infrared light reflects internally. The sensor outputs a base frequency signal (20Hz ± 2Hz).
Liquid Detected: When liquid contacts any detection point (DP1, DP2, DP3, DP4), the light refracts out. The frequency output increases proportionally based on which points are submerged.
This allows your system to monitor low, medium, and high levels simultaneously with a single probe.
Product Features
Say Goodbye to Mechanical Failures
Tired of pumps burning out due to stuck float switches? This liquid level sensor has no moving parts. It eliminates mechanical wear completely, ensuring a service life exceeding 50,000 hours.
Compact Design, Maximum Value
Need to save space without sacrificing performance? The D2LS-A features a small footprint and low-profile design. It fits easily into tight spaces in coffee makers, humidifiers, and water heaters.
Smart Digital Output
Worried about complex signal processing? This sensor includes a built-in ADC conversion chip. It delivers a clean digital frequency signal, making it easy for your MCU to read and interpret.
Built to Last
Engineered for durability. The sealed housing meets IP67 waterproof standards, protecting against dust and liquid ingress. It also complies fully with RoHS environmental regulations.
Working Principle
Best Practices for Installation
For optimal performance, please follow these guidelines:
Avoid Direct Sunlight: Install the sensor in a location shielded from direct sunlight to prevent optical interference.
Keep it Clean: While slight dirt won't affect performance, severe scaling or biofilm buildup can block the optical surface. Clean the sensor tip periodically for long-term accuracy.
Secure Wiring: Ensure the VCC, GND, and Signal wires are securely connected to your control board to prevent signal noise.
Product Parameters
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Application Fields
Where to Use This Sensor
This multi-point liquid level sensor is ideal for residential, commercial, and light industrial applications:
Beverage Equipment: Coffee machines, water dispensers, and soda makers.
Climate Control: Humidifiers, dehumidifiers, and air purifiers.
Water Systems: Water heaters, water dispensers, and RO systems.
Medical Devices: Fluid monitoring in medical analyzers and dialysis machines.
Installation Method
Engineered for Quality
We are a professional manufacturer of electronic sensors with strict QC processes. Every PLS-SS106 unit undergoes 100% testing before shipment. We offer professional OEM/ODM services and fast technical support to ensure your project succeeds.
Customizable Options
As a professional sensor manufacturer, we support full-process personalized customization to meet customers' unique scenario requirements:
1. Structural Customization
Customize probe length, thread specification, installation size and sensor shape to adapt to special-shaped oil tanks and limited installation space.
2. Electrical Parameter Customization
Customize working voltage, output signal mode (NPN/PNP/analog signal), wire length and connector type to match different equipment control systems.
3. Material & Performance Customization
Upgrade high-temperature resistant, corrosion-resistant and explosion-proof materials, and customize special temperature resistance and vibration resistance parameters for extreme working condition
FAQ
Q: What types of oil liquids can the PLS-106 optical oil level sensor detect?
A: It is suitable for most conventional oil liquids, including engine oil, hydraulic oil, diesel oil, lubricating oil and other industrial and vehicle oil liquids, not suitable for highly corrosive chemical oils.
Q: Can the sensor work stably in vibrating vehicle and marine environments?
A: Yes. The integrated solid structure has excellent shock resistance and anti-vibration performance. It has passed professional vibration testing and can adapt to long-term vibration working conditions of vehicles and ships without false detection.
Q: Is customized service available for bulk orders?
A: Absolutely. We support customized adjustment of size, parameters, structure and accessories according to customer drawings and working condition requirements, and provide exclusive solution services for bulk cooperative customers.
Q: What is the protection level of the sensor, and is it suitable for outdoor use?
A: The protection level reaches IP67, which is waterproof, dustproof and moisture-proof. It can be used stably in outdoor, marine and other humid and dusty environments.
Q: How long is the product service life and warranty period?
A: The product has a super long service life of more than 500,000 detection times. We provide 1-year official warranty and lifelong technical support service.
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