
We are proud to introduce the FLT9S10 Microwave Level Switch, a robust industrial level detection instrument engineered to deliver reliable, non-contact level monitoring in the most demanding industrial environments. As a specialized level switch, the FLT9S10 Microwave Level Switch leverages advanced microwave technology, making it the ultimate choice for harsh working conditions such as high temperature, dust, and material buildup.
The FLT9S10 Microwave Level Switch consists of a transmitter and a receiver, designed for face-to-face installation. The transmitter of the FLT9S10 Microwave Level Switch emits microwave signals; when the microwave is blocked by an object, the receiver outputs an alarm signal. Harsh working conditions may cause sensor surface contamination, such as paper scraps and other material attachments. Thanks to the strong penetration of microwaves, the FLT9S10 Microwave Level Switch can easily penetrate these contaminants to complete measurements. Therefore, the FLT9S10 Microwave Level Switch is effectively used for level monitoring of waste materials, ores, powders, particles, asphalt and other media, especially suitable for harsh working conditions such as electric arc furnaces and dry quenching.
The FLT9S10 Microwave Level Switch is equipped with 16 independent channels that work in parallel without mutual interference, ensuring stable and reliable detection performance even in complex multi-point monitoring scenarios.
The transmission frequency of the FLT9S10 Microwave Level Switch has extremely strong penetration, which is not affected by hanging materials, surface buildup, suspended particles, or steam. This feature ensures the FLT9S10 Microwave Level Switch maintains accurate detection in heavily contaminated environments.
The high-temperature structure of the FLT9S10 Microwave Level Switch can withstand temperatures up to 1600°C, making it ideal for use in high-temperature applications such as dry quenching systems and industrial furnaces.
The FLT9S10 Microwave Level Switch adopts a conical microwave energy distribution, which eliminates the need for precise alignment and is not affected by vibration, greatly simplifying on-site installation and maintenance.
With a measurement range of up to 260m, the FLT9S10 Microwave Level Switch is suitable for large silos and long-distance detection. It also features 15 LED signal strength indicators for intuitive sensitivity display, making on-site debugging of the FLT9S10 Microwave Level Switch extremely convenient.
The FLT9S10 Microwave Level Switch supports G¾” threaded installation, with a compact design that is easy to install and suitable for various industrial tank and silo structures.
| Parameter | Specification |
|---|---|
| Transmission Frequency | 10G / 24G / 120GHz |
| Delay Time | 0 ~ 50s |
| Minimum Power Consumption | 2VA |
| Measuring Range | Up to 260m |
| Output Contact | AC250 5A |
| Over-Temperature Resistance | 1200°C |
| Operating Voltage | 12~32V DC / 220VAC |
| Operating Temperature | -40~75°C |

The FLT9S10 Microwave Level Switch transmitter and receiver share the same dimensional specifications:
•Overall Length: 125mm
• Height: 88mm
• Process Connection: G¾” Thread
The compact design of the FLT9S10 Microwave Level Switch ensures easy installation in limited space.
• T9S10T: Microwave Switch Transmitter
• T9S10R: Microwave Switch Receiver
| Code | Connection Form | Code | Connection Form |
|---|---|---|---|
| L1 | G¾” | L2 | G1 |
| L3 | G1½” | L5 | DN50PN10 |
| LA | DN100 PN10 | LZ | Customized |
| Code | Specification | Code | Specification |
|---|---|---|---|
| W1 | 80°C@2Bar | W2 | 130°C@20Bar |
| W3 | 230°C@20Bar | W5 | 450°C@40Bar |
| WB | 1200°C@20Bar | W9 | Customized |
| Code | Material | Code | Material |
|---|---|---|---|
| J1 | PP | J2 | 304 |
| J3 | 316L | J9 | Customized |
| Code | Material | Code | Material |
|---|---|---|---|
| M1 | Fluororubber | M2 | PTFE |
| M3 | Ceramic | M4 | Sapphire |
| Code | Power | Code | Power |
|---|---|---|---|
| P1 | 24V Low Power | P2 | 24V High Power |
| P3 | 220V Low Power | P4 | 220V High Power |
The FLT9S10 Microwave Level Switch is widely used in various industrial fields for level monitoring of waste materials, ores, powders, particles, asphalt and other media, as well as detection of high-temperature, high-pressure and hazardous substances:
•Mining & Quarrying: The FLT9S10 Microwave Level Switch provides reliable level detection for ore silos, material transfer points and mining processing equipment.
• Metallurgy & Steel: The high-temperature resistance of the FLT9S10 Microwave Level Switch makes it ideal for dry quenching systems, electric arc furnaces and steelmaking processes.
• Chemical & Petrochemical: The FLT9S10 Microwave Level Switch ensures safe level monitoring for hazardous materials, corrosive media and high-pressure reaction tanks.
• Food & Pharmaceutical: The FLT9S10 Microwave Level Switch delivers hygienic and reliable level detection for food processing, pharmaceutical production and powder handling.
• Building Materials & Cement: The FLT9S10 Microwave Level Switch is suitable for level monitoring of cement silos, clinker bins and building material production lines.
The FLT9S10 Microwave Level Switch stands out with its extreme high-temperature resistance, strong penetration, wide measurement range and easy installation. It combines advanced microwave technology with user-friendly design, offering accurate and reliable level detection for all your harsh industrial environment needs. Whether you are operating a steel plant, mining site or chemical refinery, the FLT9S10 Microwave Level Switch is the reliable, cost-effective solution you can trust to optimize your process safety and efficiency.