Level & Interface SensorsTL-KS-SMY1
Liquid Level Sensor

Level & Interface Sensors
Liquid Level Sensor
TL-KS-SMY1
Submersible static pressure level sensor. Range 0–20 m, IP68, RS485 + 4-20mA output.
Request a QuoteProduct Overview
The TL-KS-SMY1 is a submersible static pressure liquid level sensor for continuous water level measurement in tanks, reservoirs, rivers, and wells. High sampling rate and IP68 rating for reliable long-term deployment.
Working Principle
The sensor uses a continuous online measurement principle with automatic temperature compensation. The measurement signal is processed by an integrated microprocessor and transmitted via RS485 Modbus RTU for direct integration with PLCs, data loggers, and SCADA systems. The 4–20 mA analog output provides compatibility with legacy control systems.
Wiring & Signal Output
Power supply: 12–24 V DC (standard); 220 V AC with adapter
Primary output: RS485 Modbus RTU (address configurable 1–247)
Analog output: 4–20 mA (proportional to measured value)
Relay output: 2 × SPDT relay for alarm / dosing control
Communication: Modbus RTU function codes 03 / 06 / 16
Cable entry: M16 cable gland, IP68 submersible cable available
Technical Specifications
| Parameter | Value |
|---|---|
| Measurement Principle | Static pressure submersible |
| Measuring Range | 0–1m / 0–5m / 0–10m / 0–20m |
| Accuracy | ±0.5% FS |
| Working Conditions | 0–60°C |
| Power Supply | 12–24 VDC |
| Signal Output | RS485 Modbus RTU, 4-20mA |
| Insulation | 100 MΩ / 250 VDC |
| Material | 316 stainless steel |
| Protection | IP68 |
| Vibration Resistance | 20G (20–5000 Hz) |
| Sampling Rate | 2400 times/second |
Key Features
- Static pressure submersible measurement
- High sampling rate: 2400 times/second
- Multiple range options: 1m to 20m
- Vibration resistant for industrial environments
Typical Applications
Water tanks and reservoirsRivers and canalsWells and boreholesIndustrial tanks
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