L703 Submersible Hydrostatic Level Transmitter
For accurate water and liquid level measurement in industrial and environmental applications. Designed with corrosion-resistant stainless steel, advanced temperature compensation, and surge protection, the L703 ensures long-term reliability in demanding conditions. Equipped with a fully welded 316L diaphragm and military-grade cables, it provides stable and precise level monitoring in various liquids.
Applications:
✔ Groundwater Monitoring – Ensures accurate water level tracking in wells, boreholes, and aquifers.
✔ Wastewater Treatment Plants – Monitors liquid levels in wastewater processing and filtration systems.
✔ Tank Level Monitoring in Chemical Storage – Suitable for corrosive and industrial liquid storage tanks.
✔ Water Well Monitoring – Provides reliable water level measurement for agriculture and municipal supply systems.
✔ Flood Monitoring and Prevention – Supports early warning systems for stormwater and flood-prone areas.
L703 is the ideal solution for precise and long-term liquid level monitoring in challenging environments.
Description
The L703 Submersible Hydrostatic Level Transmitter is a high-precision, corrosion-resistant sensor designed for accurate liquid level measurement in demanding environments. Constructed with a 304 stainless steel housing and a fully welded 316L diaphragm, it ensures long-term durability and compatibility with various liquids, including water, wastewater, and industrial fluids. The imported sensing core provides 0.5% high accuracy, while the digital circuit board with full-temperature compensation guarantees stable performance across temperature variations.
Equipped with surge protection, polarity protection, and ATEX explosion-proof certification, the L703 ensures reliable operation even in harsh industrial conditions. Additionally, the built-in vent pipe with a moisture-proof molecular sieve enhances atmospheric connectivity and prevents sensor drift due to pressure fluctuations. Designed for medical, metallurgical, and municipal water supply applications, this transmitter delivers precise and stable signal transmission with military-grade cables for optimal protection against external interference.
Features
✔ Corrosion-Resistant 304 Stainless Steel Housing – Withstands exposure to acids like phosphoric, sulfuric, and formic acids, making it suitable for water, wastewater, and irrigation applications.
✔ High-Accuracy Imported Core (Up to 0.5%) – Ensures precise and stable liquid level measurement.
✔ Advanced Digital Temperature Compensation – Minimizes the effects of external temperature fluctuations, maintaining measurement accuracy.
✔ Fully Welded 316L Stainless Steel Diaphragm – Enhances durability and liquid compatibility for various industrial applications.
✔ Built-in Vent Pipe with Moisture-Proof Molecular Sieve – Provides automatic pressure compensation and prevents moisture intrusion, ensuring long-term sensor stability.
✔ Surge & Polarity Protection – Prevents damage from reversed connections and electrical surges for enhanced reliability.
✔ ATEX Explosion-Proof Certification – Ensures safe operation in hazardous environments with a wide voltage supply.
✔ Military-Grade Cables – Offer superior protection against environmental interference and ensure stable signal transmission.
Specification
| Level Range | 0-1…100m H20 (Special by customized) | |||||
| Electrical Wire | 2 Wires | 3 Wires | 4 wires | |||
| Output | 4~20mA | 1~5V
0~5V |
0~10 V | 0.5~4.5 V | SDI-12 | RS485 Modbus RTU |
| Power Supply | 12~36Vdc | 10~36Vdc | 15~36Vdc | 5Vdc | 10~30Vdc | 10~30Vdc |
| Working Temp. | -30℃~70℃ or -30℃~100℃(Customized) | |||||
| Storage Temp. | -40℃~85℃ | |||||
| Temperature compensation | 0℃~50℃ | |||||
| Accuracy | ≤ ±0.5%F.S, ≤ ±0.25%F.S(by customized) | |||||
| Long-term Stability | Standard: 0.2%F.S±0.05% | |||||
| Overload | 150% F.S. | |||||
| Medium compatible | Compatible with 316L Stainless Steel | |||||
| Ingress Protection | IP68 | |||||
Datasheet
L703 Submersible Hydrostatic Level Transmitter Datasheet






