UL103 – Ultrasonic Level Sensor for Water & Fuel Tanks
The UL103 Ultrasonic Level Sensor offers precise, non-contact measurement for water, fuels, and industrial liquids. Ideal for industrial processes, environmental monitoring, and tank management.
Applications:
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Aquaculture tanks
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River and stream monitoring
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Industrial process tanks
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Hydroelectric plants
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Swimming pools and water features
Description
The UL103 ultrasonic level sensor is a versatile solution for accurate and maintenance-free liquid level measurement. With a measuring range of up to 15 meters, it is suitable for various applications – from aquaculture tanks and swimming pools to river monitoring, industrial process tanks, and fuel storage.
Using advanced ultrasonic technology, the UL103 delivers stable and precise measurements without contacting the medium. Its compact design, minimal blind zone, and strong resistance to electromagnetic interference make it ideal for both indoor and outdoor environments.
Whether in industrial processes, environmental monitoring, or energy production, the UL103 ensures reliable results, simple integration, and long service life.
Features
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Measuring range up to 15 m for water, fuel, and chemical tanks
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Non-contact ultrasonic technology – no risk of contamination
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High accuracy (≤ ±0.5% F.S.) with small blind zone of only 150 mm
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Resistant to electromagnetic interference and environmental disturbances
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Fast response time with self-recovery after power-off
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IP67–IP68 protection class for harsh environments
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Easy integration with 4–20 mA, 0–10 V, or Modbus outputs
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Maintenance-free design with no moving parts
Specification
| Range | 2.5m, 5m, 10m,15m, others on request |
| Blind Area | 4-20mA/0-5v(2.5m/5m):≤200mm
4-20mA/0-5V(10m):≤300mm 4-20mA/0-5V(15m):≤500mm |
| Output | 4-20mA(3 wires)&RS485 Modbus RTU; 0-5V(3 wires)&RS485 Modbus RTU Optional |
| Power Supply | DC 24V(default); DC 12V(by customized) |
| Accuracy | 0.5%F.S (typical), 0.25%F.S (by customized) |
| Operating temp. | -10~50℃(-40~80℃ by customized) |
| IP rating | IP67 typical, IP68 by customized |
| Installation mode | Nut clamping fixed installation, screw-in installation, M68×2 |
| Product material | Polypropylene + glass fiber |
FAQ
1. What liquids can the UL103 measure?
It can measure water, fuels (diesel, gasoline, heating oil), chemicals, and other common liquids.
2. Can the UL103 be used outdoors?
Yes, thanks to its robust IP67–IP68 design, it works reliably in outdoor environments such as rivers, reservoirs, and industrial sites.
3. What output signals are available?
The UL103 supports 4–20 mA, 0–10 V, and Modbus for easy system integration.
4. Is it maintenance-free?
Yes, the non-contact design and absence of moving parts ensure minimal maintenance and a long service life.
5. How is UL103 different from UL101?
UL101 is optimized for water applications like reservoirs and dams, while UL103 is more versatile and designed for both water and fuels, making it suitable for industrial process tanks and energy facilities.
Datasheet
UL103 Ultrasonic Type Level Measurement Datasheet
