The FRD Sensor FD86E Submersible Level Transmitter is designed for continuous liquid-level measurement in tanks, wells, reservoirs, and other industrial applications.
By using a submerged sensing probe, the FD86E provides continuous level measurement and is suitable for applications where conventional surface-mounted instruments may be difficult to install.
Liquid-level measurement in real applications can be affected by difficult installation, changing liquid levels, harsh environments, and unstable measurement signals.
The FD86E is designed to address these common challenges:
| Range | 0-1m~200m |
|---|---|
| Accuracy | 0.25%FS, 0.5%FS |
| Output Signal | 4~20mA with HART, 1V ~ 5V DC, RS485 protocol |
| Protocol | MODBUS RTU , HART |
| Power Supply | (16~28)VDC (24VDC recommended) |
| Working Temperature | -10℃ ~ 60℃ |
| Long-term Stability | 0.3% F.S / year |
| Protection Class | IP65(Housing) IP68(Sensor) |
| Products Warranty | 12 moths |
FRD Sensor provides OEM and ODM customization for the FD86E, supporting equipment manufacturers, system integrators, and industrial customers.
Customization may include measurement range, cable length, electrical connection, output configuration, product labeling, logo, and packaging according to project requirements.
If the FD86E level reading is inaccurate or unstable, check the following:
Proper installation and regular inspection can help maintain stable level measurement.


The FRD Sensor FD86E Submersible Level Transmitter provides a practical solution for continuous liquid-level monitoring where flexible installation and reliable measurement are required. With OEM/ODM customization and batch supply capabilities, it is suitable for equipment manufacturers, system integrators, and industrial applications.