
Float Level Switch – Reliable Liquid Level Detection Across Industries
Float level switches are widely used in industrial and commercial applications to detect liquid levels in tanks, vessels, and pipelines....
Level Switches
Home » Products » Level Switchs » RF Admittance Level Switchs for Solids & Liquids | Anti-Buildup High Precision Detection

Instrava Curated Instruments — Built on carefully evaluated sensing technologies, our rf admittance level switchs deliver high-precision, stable, and intelligent level detection across solids, liquids, and challenging industrial media.
This rf admittance level switch for sticky materials and bulk solids uses advanced admittance measurement with triple-electrode shielding technology to eliminate false signals caused by buildup, ensuring reliable switching in dusty, viscous, and high-temperature environments.
✔ Anti-buildup intelligent detection
✔ Ultra-wide temperature and pressure capability
✔ Maintenance-free operation
Liquid Level Switches Description
RF Admittance Level Switch Advantages for Industrial Applications
This rf admittance level switch with shielding electrode design consists of:
The shield electrode isolates interference and ensures that only true material level changes are detected, effectively eliminating false signals caused by material adhesion or coating.
This high accuracy rf admittance level switch provides:
Delivering reliable and repeatable level detection in critical processes.
This rf admittance level switch for solids, liquids, and slurry supports:
Making it a versatile solution for multiple industries.
Designed for extreme environments, this industrial rf admittance level switch performs reliably under:
With no moving parts and contact measurement, this maintenance-free rf admittance level switch offers:


RF Admittance Level Switch Applications for Industrial Processes
This rf admittance level switch for powder level detection is widely used in:
Suitable as a rf admittance level switch for liquid and slurry, including:
With support for:
This high-temperature rf admittance level switch is ideal for harsh industrial processes.
Liquid Level Switches Parameter
| Parameter | Specification |
|---|---|
| Measuring Principle | RF Admittance (Capacitance + Impedance) |
| Measuring Range | 1–3300 pF |
| Resolution | 0.01 pF |
| Accuracy | 0.05 pF |
| Stability | 0.01%/°C |
| Power Supply | 18–36V DC / 90–265V AC |
| Power Consumption | <0.8W (DC) / <5VA (AC) |
| Output | DPDT Relay / 8mA–16mA Two-wire |
| Relay Capacity | 5A / 250V AC |
| Delay | 0–20 s Adjustable |
| Process Temperature | -40°C to 1200°C (custom above 230°C) |
| Process Pressure | Max 63 kgf/cm² |
| Installation | Thread / Flange |
| Protection Rating | IP66 / IP67 |
| Load Capacity | Up to 215 Nm (high-temp type) |
| Explosion Proof | Ex ia / Ex db / Ex tb / Composite |
| Certification | SIL-ready / EAC certified |
| Cable Entry | M20×1.5 / 1/2″ NPT |
Instrava OEM/ODM
Reliable Instruments. Solutions That Fit Your Application.
Instrava is focused on delivering reliable industrial solutions through carefully curated products, application-driven optimization, and flexible customization. We select proven instruments from trusted manufacturers to ensure consistent quality, optimize solutions based on real working conditions to solve practical challenges, and provide tailored configurations to meet specific application needs.
By combining selection expertise with application understanding, Instrava helps customers reduce risk, improve efficiency, and achieve dependable results in complex industrial environments.

How does an RF admittance level switch prevent false signals from buildup?
A rf admittance level switch with shielding electrode uses a driven shield that matches the measuring signal, isolating buildup on the probe. This ensures only the actual material level is detected, eliminating false readings.
What materials can RF admittance level switches measure?
A rf admittance level switch for industrial materials can measure:
Can RF admittance level switches work in extreme environments?
Yes, this industrial rf admittance level switch is designed for:
What is the difference between RF admittance and capacitive level switches?
A rf admittance level switch can distinguish between material buildup and actual level, while capacitive switches cannot, making RF admittance more reliable in sticky or coating applications.
Does an RF admittance level switch require maintenance?
No. This maintenance-free rf admittance level switch has no moving parts and requires minimal cleaning or servicing.
Where are RF admittance level switches commonly used?
Typical applications include:
Built on Consistency, Not Claims
We specialize in industrial analysis and detection, with a clear understanding of real-world operating environments and requirements.
Every instrument is evaluated based on performance, stability, and application suitability—not just specifications or pricing.
We work with trusted manufacturers to ensure stable supply, consistent quality, and dependable delivery.
Our recommendations are grounded in application understanding, helping customers avoid common issues and achieve reliable results.
Instrava is built to reduce uncertainty—so every decision you make is clearer, safer, and more reliable.

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