The HNL100-A Ultrasonic Fluid Level Sensor is an industrial-grade level monitoring device for non-contact measurement of liquids and selected bulk solids under stable conditions. Widely used in water treatment, chemical processing, warehousing, environmental protection, and power industries, it helps reduce common operational risks such as cable entanglement, clogging, leakage, and corrosion, supporting stable, low-maintenance long-term operation.

Key Advantages

High Accuracy and Wide Range: Measurement range 5–40m (customizable), accuracy ±0.3% F.S under standard testing conditions.
Non-Contact Measurement: Measures without direct media contact, preventing clogging and corrosion
Multiple Outputs and Remote Monitoring: 4-20mA / 0-5V / 0-10V / RS485 / GPRS / Bluetooth, enabling remote data access
Industrial-Grade Durability: ABS engineering plastic housing, IP65 protection, optional Exia IB T4 Ga explosion-proof rating
Easy Integration and Installation: M60x2 / DN80 installation interfaces, compatible with 12-24VDC or 220VAC power supply
Expandable Features: Supports upper/lower limit control, alarms, and MiniSD/USB data logging

Technical Specifications

Parameter	Detail
Measurement Principle	Non-contact ultrasonic measurement (Time-of-Flight, TOF)
Measuring Medium	Water, sewage, acid/alkaline solutions, oils, beverages, etc.
Measurement Range	5m, 8m, 10m, 12m, 15m, 20m, 25m, 30m, 35m, 40m (customizable)
Display	OLED self-illuminating menu in English/Chinese, 1mm resolution
Outputs	4-20mA / 0-5V / 0-10V / RS485 / GPRS / Bluetooth / 3 NPN channels / 2 relay channels
Power Supply	12-24VDC / 220VAC
Housing Material	ABS engineering plastic
Protection Level	IP65 (higher protection levels available)
Installation Interface	M60x2 thread / Φ61mm round hole (with large nut) / DN80 non-standard
Certification	CE certified

Applications

Water Treatment: Pump stations, water tanks, reservoir monitoring
Chemical Industry: Monitoring corrosive liquids such as acids, alkalis, and solvents
Warehousing: Managing liquid storage in oils, beverages, and bulk tanks
Environmental Protection: Wastewater treatment, effluent monitoring
Power & Energy: Tank level monitoring for industrial processes

Why Choose Us

Hongnuo (Shenyang) General Machinery Co., Ltd. is an ISO 9001-certified manufacturer specializing in industrial level instrumentation for engineering distributors, system integrators, and international procurement managers.
Flexible Custom Configuration: Tailored blind zone tuning, chemical-resistant PVDF/PTFE transducer faces, and extended range adjustments up to unique specifications.
Rapid Wholesale Logistics: Direct factory pricing structures with tier-one shipping routing, transparent cross-border customs documentation, and scheduled bulk-batch fulfillment.
OEM Branding & Custom Firmware: Physical housing options, localized field software menus, and custom default transmission protocols for volume orders.

Certificate

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FAQ

Q: How is the HNL100-A Ultrasonic Fluid Level Sensor packaged for shipping?

A: Each sensor is individually packed in high-strength anti-static foam and cardboard boxes to prevent damage during transit. Bulk orders are palletized with shrink wrap and protective padding to ensure safe delivery. Optional wooden crates are available for large or export shipments.

Q: What shipping methods are available for international orders?

A: We support multiple global shipping options, including sea freight, air freight, and express courier (DHL, FedEx, UPS). Customers can select the method based on urgency, cost, and destination.

Q: What is the typical lead time for HNL100-A orders?

A: Standard orders are typically ready for shipment within 7–15 business days. For customized units with special measurement ranges, outputs, or explosion-proof ratings, lead time may extend to 15–30 business days depending on order specifications and volume.

Q: Can you provide OEM or bulk packaging for large orders?

A: Yes, we offer OEM labeling, bulk packaging, and custom carton designs to meet client branding and logistics requirements. Palletization and containerized shipping are available for large quantity orders.

Q: Can you accommodate urgent orders or express delivery?

A: Yes, for urgent orders, we prioritize production and shipping. Express air courier options can deliver within 3–7 business days depending on the destination country.

Q: What after-sales support is offered for international buyers?

A: We provide a 12-month comprehensive warranty. In case of any operational issues, our engineering team provides 24-hour remote video calibration support and failure diagnosis. If a component dynamic fault occurs within the warranty period, free replacement parts will be dispatched via express courier immediately.

HNL100-A Ultrasonic Liquid Level Sensor Parameters
Specific Parameters	Value / Description
Measurement Principle	The HNL100-A ultrasonic level sensor is a non-contact measuring instrument designed specifically for industrial liquid level monitoring. It employs advanced time-of-flight (TOF) principle, accurately calculating the liquid level height based on the round-trip time of high-frequency ultrasonic pulses. It integrates a piezoelectric transducer and signal processing module within a compact pink protective housing, boasting IP65 and higher protection ratings. It supports 4–20mA/RS-485 signal output, allowing direct connection to industrial control systems. Built-in temperature compensation algorithms and echo filtering technology effectively handle complex conditions such as foam, dust, and temperature fluctuations, ensuring stable and reliable measurements.
Measuring Medium	Water, sewage, acid and alkaline solutions, oils, beverages, etc.
Application Scenarios	Level, liquid level
Connection Method	M60X2 461MM round hole (with large nut) DN80 non-standard
Electrical Connection	M20X1.5 (two sets)
Measurement Range	5m,8m,10m,12m,15m,20m,25m, 30m,35m,40m,Customized
Display	OLED Chinese and English menu (with self-illumination)
Transmitter Housing Material	ABS engineering plastic
Outputs	4~20mA,1~5V,1~10V,RS485,GPRS, 3-channel NPN,2-channel relay
Power Supply	12-24VDC,220VAC
Protection Level	IP65 (higher protection levels can be customized)
Certificate	CE certified
Ordering Information	-

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