SLA RF Admittance Level Switch
The SLA RF Admittance Level Switch developed by S·HAO uses advanced RF admittance sensing technology to provide accurate and reliable level detection for industrial processes.
The sensor effectively eliminates interference caused by material adhesion and conductive buildup, ensuring stable operation even in demanding environments.
It is widely used for monitoring powder, grain, cement, sugar, coal and other bulk materials, as well as certain liquid level applications.

Working Principle
The RF admittance level switch measures the admittance change between the sensing probe and the container wall. When the material reaches the detection point, the admittance changes and the circuit triggers the relay output.
A shielding electrode prevents false signals caused by material adhesion, ensuring that the device only outputs a signal when the material actually reaches the preset level.

Technical Characteristics
Easy installation and precise level detection.
Stable performance under harsh industrial conditions.
Suitable for high temperature applications.
No moving parts for long service life.
Typical Applications
Used for flour, cement and ash detection.
Level monitoring for grain storage silos.
Material level monitoring in production tanks.
Widely used in conveyors and storage systems.
Technical Parameters
| Parameter | Specification |
|---|---|
| Power Supply | 220VAC / 24VDC |
| Signal Output | Relay Output 5A / 250VAC DPDT |
| Operating Temperature | -20°C ~ 120°C (High Temp Version up to 235°C) |
| Working Pressure | 2MPa |
| Electrical Interface | M20 × 1.5 |
| Housing Material | Aluminum Alloy |













