Versatile Capacitive Sensor Manufacturer
Detect both metallic and non-metallic objects with absolute precision. Ideal for sensing liquids, plastics, powders, and wood, our capacitive switches provide reliable level control through non-metallic container walls.
- Omni-Material Detection: Reliably senses almost any material—water, oil, plastic pellets, grain, and cardboard—regardless of color or surface texture.
- Through-Wall Sensing: High sensitivity allows non-contact detection of liquids and bulk goods directly through glass, plastic, or fiberglass tank walls.
- Adjustable Sensitivity: Built-in multi-turn potentiometer easily fine-tunes the sensing distance to ignore background interference and focus on the target.
High-Precision Capacitive Proximity Switches: The Ultimate Multi-Material Sensor
Engineered for versatility, our capacitive proximity switches detect both metallic and non-metallic objects including liquids, glass, plastic, and wood. Utilizing advanced electrostatic field changes, these sensors provide reliable, non-contact detection for complex automation tasks where standard inductive sensors fail.
Industry-Leading Application Range
| Application Field | Typical Use Cases | Strategic Advantage |
|---|---|---|
| Liquid Level Control | Water, oil, and chemical tank monitoring | Through-Wall Detects liquid levels through non-metallic container walls (plastic/glass). |
| Packaging & Logistics | Empty box detection, granulate level in hoppers | Multi-Material Senses paper, cardboard, and plastic films with equal precision. |
| Food & Beverage | Product counting, bottle fill checking | Hygienic Non-contact sensing prevents contamination in sterile environments. |
| Material Handling | Wood processing, glass panel positioning | Adjustable Sensitivity tuning ignores dust or moisture buildup on the sensor face. |
Technical Specifications (Industrial Series)
| Technical Parameter | Standard Value | Technical Parameter | Standard Value |
|---|---|---|---|
| Sensing Distance | 1mm - 25mm (Adjustable) | Supply Voltage | 10 - 30V DC / 90 - 250V AC |
| Hysteresis | < 15% of Sensing Range | Output Configuration | PNP / NPN (NO+NC) |
| Switching Frequency | 50Hz - 100Hz | Housing Material | Nickel-Plated Brass / PBT Plastic |
| Operating Temp | -25°C to +70°C | Protection Rating | IP67 (Dust & Water Tight) |
Why Choose Capacitive Sensing Technology?
📦 Universal Detection
Unlike inductive sensors that only detect metal, our capacitive series senses everything from plastic pellets to glass sheets and organic materials.
🎛️ Adjustable Sensitivity
Equipped with a multi-turn potentiometer, you can fine-tune the sensor to "see through" certain materials or ignore specific environmental interference.
💧 Solid/Liquid Versatility
Perfect for monitoring silos and tanks. These sensors can detect powders, grains, and liquids without needing to be submerged in the media.
⚡ Solid-State Reliability
With no moving parts to wear out, these switches offer an almost infinite electrical life, significantly reducing maintenance downtime.
🛡️ Environmental Immunity
Built with robust IP67 sealing and high EMC resistance to ensure stable operation even in electrically noisy industrial environments.
📏 Compact Integration
Available in M12, M18, and M30 cylindrical formats, as well as flat-pack designs, fitting easily into tight machine spaces.
Optimize Your Detection Accuracy Today
Need help selecting the right sensor for your specific material or dielectric constant? Our engineers are here to assist.
Get a Custom Sensor QuoteBest Capacitive Proximity Switch Product
We provide high-stability capacitive sensors designed for precise non-contact detection of non-metallic targets, including liquids, granules, and plastics.
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Your trusted Chinese manufacturer of capacitive proximity switches
Delivering industrial-grade precision, factory-direct pricing, and global support since 2015.
Factory Direct & Custom Engineering
Our R&D team specializes in advanced electromagnetic circuit design and shielding technology to ensure superior stability against temperature drift and electromagnetic interference (EMI). We offer flexible customization for housing materials (PTFE/Stainless Steel for chemical resistance), sensing ranges, output modes (NPN/PNP), and connector types to perfectly integrate with your specific liquid level or granule detection lines.
Rigorous Quality Control Standards
Every capacitive sensor undergoes strict testing protocols, including sensitivity calibration for various dielectric constants, temperature stability verification, and IP67 waterproof immersion tests before shipment. We strictly enforce ISO 9001 standards to guarantee durability against vibration, moisture intrusion, and chemical corrosion in harsh industrial environments.
Expert Application Support & Rapid Delivery
Capacitive sensing requires precise tuning. Our engineers provide direct guidance on sensitivity adjustment for specific materials (liquids, granules, or powders) and NPN/PNP wiring logic. We maintain a massive stock of standard M12/M18/M30 and flat capacitive models for immediate DHL/FedEx dispatch to minimize your production downtime.
Risk-Free Sample Qualification Program
Unsure if it will detect your material? Request a free sample to test on your actual liquids, granules, or powders before bulk ordering.
Step 1: Submit Requirements
Tell us what object you need to detect (e.g., grain, water, oil) and your mounting space. Our engineers will identify the perfect capacitive sensor with the right sensitivity range for you.
Step 2: Same-Day Dispatch
We maintain ample stock of standard M12, M18, and M30 capacitive models. Once confirmed, we dispatch test units within 24 hours via DHL/FedEx to ensure you get them fast.
Step 3: On-Site Validation
Install the sensor on your production line and adjust the potentiometer. Verify the detection stability, interference resistance, and switching precision directly on your equipment with zero risk.
XSZ sensor video display
Advanced Capacitive Proximity Switches for Multi-Material Detection
Since 2015, XSZ has been at the forefront of non-contact sensing innovation. Our Capacitive Proximity Switches are engineered to detect more than just metal—they provide precision sensing for liquids, plastics, glass, wood, and granulated materials. From our 5,000m² manufacturing facility, we produce industrial-grade sensors with adjustable sensitivity, allowing for "through-wall" liquid level detection and high-performance automation in harsh environments.
Certification
We have passed TUV’s CE certification, ROHS certification, FDA certification, ETL CSA certification, and comply with European and American standards.
Customer Success Stories
From liquid level control to wood and plastic detection, our capacitive proximity switches are the industry standard for versatile automation.
"We needed to monitor chemical levels without corrosive liquids touching the sensor. The XSZ capacitive switch allowed us to detect the level through the HDPE tank wall perfectly. The adjustable sensitivity meant we could tune out the condensation on the outside of the tank. Excellent performance!"
"Detecting transparent glass panels on our assembly line was a nightmare with optical sensors. Switching to XSZ's capacitive sensors solved it instantly. Because it detects the material's dielectric properties rather than light reflection, the accuracy is 100% regardless of the glass thickness or clarity."
"In our grain processing facility, dust buildup is a constant issue. These switches are rugged enough to handle the vibration and the IP67 sealing keeps them running even during washdowns. We use them for hopper full/empty detection and they haven't failed once in two years."
