
803 Submersible Level Transmitter
Hydrostatic submersible level transmitter
304 stainless steel housing with 316L diaphragm
IP68 waterproof design for long-term immersion
Stable 4–20mA output, optional RS485 communication
High-precision diffused silicon sensing element
Double-shielded vented cable for anti-interference performance
Custom measuring range and cable length available
803S version with integrated digital display
Suitable for tanks, wells, reservoirs, sewage, and industrial liquid level monitoring

Application
Description
The 803 / 803S Submersible Level Transmitter is a high-precision hydrostatic level measurement device designed for continuous liquid level monitoring in water tanks, reservoirs, wells, sewage systems, and industrial process applications. It utilizes a high-performance diffused silicon pressure sensing element to convert liquid level changes into a stable electrical output signal. The rugged stainless steel construction ensures reliable operation in harsh industrial environments.
The transmitter features a 304 stainless steel housing, a 316L stainless steel diaphragm, IP68 waterproof protection, and a double-shielded vented cable for excellent long-term stability and interference resistance. The specially designed pressure inlet structure helps reduce clogging and pressure impact, ensuring accurate and dependable level measurement.
The 803 model provides standard analog signal output for PLC, DCS, and control systems, while the 803S model integrates a local digital display, allowing users to monitor liquid level values directly on site for easier operation and maintenance.
Features
- High-precision diffused silicon sensing element
- 304 stainless steel housing with 316L diaphragm
- IP68 waterproof design for long-term immersion
- Double-shielded vented cable with strong anti-interference performance
- Special pressure inlet structure helps prevent clogging
- Stable 4–20mA output, optional RS485 communication

- Wide measuring ranges and cable lengths available
- Factory calibrated for reliable long-term performance
- Suitable for water, wastewater, and general industrial liquids
- 803S model features an integrated digital display















