Ion Selective SensorsTL-F Series
Fluoride Ion Sensor

Ion Selective Sensors
Fluoride Ion Sensor
TL-F Series
ISE fluoride sensor. Range 0–50 mg/L, IP68, RS485 + 4-20mA output.
Request a QuoteProduct Overview
The TL-F Series measures fluoride ion concentration using ion-selective electrode technology. Suitable for drinking water fluoridation monitoring, industrial effluent control, and environmental compliance.
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 | Ion-selective electrode (ISE) |
| Measuring Range | 0–50 mg/L |
| Accuracy | ±10% FS |
| Resolution | 0.01 mg/L |
| Temperature Range | 0–40°C |
| Pressure | 0–2 Bar |
| Signal Output | RS485 Modbus RTU + 4-20mA |
| Power Supply | 12–24 VDC |
| Connection | 3/4" NPT Thread |
| Protection | IP68 |
| Cable Length | 5m |
| Material | 316 stainless steel |
Key Features
- Ion-selective electrode for fluoride measurement
- Suitable for drinking water compliance monitoring
- Continuous online measurement
- RS485 Modbus RTU output
Typical Applications
Drinking water fluoridation monitoringIndustrial effluent controlEnvironmental complianceWater quality surveillance
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