Ultrasonic Level Transmitter Customized Supplier In China
Your trusted sourcing partner for ultrasonic level transmitter in china—quality instruments at competitive prices.
Are you overwhelmed by too many conflicting quotes?
Are you worried about factory capabilities because tight project deadlines and heavy procurement tasks leave you no time to audit suppliers?
Are you wasting time researching because every factory claims their product is the best, thereby delaying your procurement schedule?
Instrava is here to help you solve your procurement challenges in China.
We serves a global clientele, including EPC contractors, OEM equipment manufacturers, procurement managers, distributors, traders, and engineering consultants. We provide curated product quotations from 3 pre-vetted factories
Standardized Supplier Qualification ProcessEvery manufacturing partner is evaluated through our standardized supplier qualification process before being included in the Instrava sourcing network. The assessment focuses on manufacturing capability, engineering expertise, quality control, delivery reliability, and long-term service support., helping our clients drastically save time on sourcing, screening, and supplier comparison.
Whether you are building new industrial production lines, upgrading and replacing legacy instruments, sourcing for wholesale trade, or requiring custom OEM production, we empower you to secure the most perfectly matched products.
Let’s collaborate for mutual success. With our customer-centric service, Instrava is your trusted procurement partner in China.
Selection Recommendations and Parameters for Ultrasonic Level Meters
When selecting an Ultrasonic Level Transmitter, decisions should never be based solely on “measuring range” and “price.” Ultrasonic technology relies on sensitive physical acoustic waves, where process media properties, vapor space conditions, and tank geometry directly determine measurement accuracy and reliability.
Therefore, the following 6 core factors must be thoroughly evaluated during selection:
Media Characteristics (Liquid vs. Solid)
Measuring Range & Blanking Distance (Dead Zone) Constraints
Process Environment (Temperature, Pressure & Airflow)
Vessel Structure & Geometric Installation Conditions
Electrical Configuration, Signal Output & System Integration
Safety Certifications & Ingress Protection (IP) Ratings
Note: Specifications may vary depending on manufacturer configuration and customization requirements. Please contact us for detailed technical confirmation.
| Specification Parameter | Standard / Typical Range | Extended / Advanced Range | Selection Guidance & Remarks |
| Medium | Water, wastewater, mildly corrosive liquids, standard bulk solids | Highly corrosive liquids (e.g., concentrated HCl, strong alkalis) | Determines the selection of sensor and anti-corrosion materials. |
| Measuring Range | Liquid: 5m, 10m, 15m
Solid: 3m, 8m, 12m | Long Range: 30m, 50m, 60m (requires high-power transducer & wide beam angle) | Measuring range for solids/powders is typically derated to 50%–70% of the liquid range. |
| Probe Material | ABS engineering plastic | PVDF, PTFE (Teflon) | ABS for general water treatment; PVDF or PTFE mandatory for strong acid/alkali or high-corrosion applications. |
| Transducer Material | Piezoelectric Ceramic | Composite piezoelectric / Polyethylene coating | Affects beam angle, acoustic matching, and signal receiving sensitivity. |
| Accuracy | 0.5% FS, 1.0% FS
Calm water surface: ±3mm | High precision: ±1mm or 0.25% FS | Accuracy is influenced by ambient temperature gradients and gas medium turbulence. |
| Resolution | 3–5mm or 0.1% FS (whichever is larger) | 1mm (High-resolution digital sampling) | Choose high resolution for open-channel flow meters or precise dosing tanks. |
| Display Mode | LCD dot-matrix display with keypad configuration | Blind (no display), Wide-temp OLED, Bar-graph display | For outdoor solar exposure or extreme cold environments, OLED or wide-temp heated LCDs are recommended. |
| Signal Output | 4–20mA DC | 0–5V, 0–10V, Pulse/Frequency output | 4–20mA is the standard analog output for industrial PLC/DCS systems. |
| Load Resistance | 2-wire (24V DC): 250Ω
4-wire (220V AC): 500Ω | 750Ω (for long-distance transmission or high-voltage supply) | Ensures clean, distortion-free long-range signal transmission. |
| Relay Output | 2 groups optional (programmable High/Low alarms) | 4 or 6 groups (independent pump/valve control) | Contact capacity: 250VAC 8A / 30VDC 5A; directly drives small AC contactors. |
| Process Connection | Thread: M60×2, G1.5″, G2″, 2″ NPT
Flange: DN50, DN80, DN100 (HG/T 20592, ANSI) | Bracket mount, Aiming Flange (adjustable angle), ANSI/JIS custom flanges | Aiming flanges are strongly recommended for solids/dust level or tilted installations. |
| Working Temperature | Sensor: -20°C to 80°C
Transmitter Enclosure: -20°C to 60°C | Low temperature: -40°C to 60°C | Ultrasonic sensors are not suitable for temperatures >80°C (causes piezo degradation and sound velocity error). |
| Rated Pressure | -0.1 to 0.1 MPa (Atmospheric to mild positive/negative pressure) | Select pressure-proof models up to 0.3 MPa | Ultrasonic level meters are strictly not recommended for high pressure (>0.1 MPa) or vacuum applications. |
| Communication Interface | RS485 / Modbus-RTU | RS232, HART, Profibus-DP, CANopen | RS485/Modbus is the preferred choice for Smart Water and IoT system integration. |
| Power Supply | 24V DC (2-wire / 4-wire)
220V AC (4-wire) | 12V DC (Solar power), Lithium Battery (Self-powered) | 12V DC or battery power is recommended for off-grid outdoor or river monitoring. |
| Electrical Interface | M20×1.5, 1/2″ NPT | M16×1.5, G1/2″, Quick Aviation Plug | Explosion-proof applications require strict matching with certified cable glands. |
| Explosion-proof Grade | Intrinsic Safety: Exia IICT6 Ga
Flameproof: Exd IICT6 Gb | Non-explosion-proof (Standard general purpose) | Mandatory certification for chemical plants, gas stations, underground pits, and combustible dust zones. |
| Protection Rating | IP67 (Weatherproof / temporary immersion) | IP68 (Sensor probe submersible / remote split design) | Select IP68 split design for manholes, underground sumps, or areas prone to flooding. |
| Enclosure Material | Die-cast Aluminum alloy, Engineering plastics (ABS/PC) | SS304 / SS316L Stainless Steel | Aluminum alloy for standard industrial sites; stainless steel for food/pharma or harsh marine environments. |
| Ambient Humidity | ≤ 95% RH (Non-condensing) | 100% RH (With anti-condensation probe design) | High-humidity environments require anti-condensation probe geometry to prevent moisture droplet accumulation. |
An excellent supplier solving your procurement challenges in China.
Torn between multiple supplier quotes from China? Let Instrava streamline your sourcing.
Every factory in our network is hand-picked, backed by 10 to 30+ years of manufacturing expertise, and fully aligned with evolving market standards. They bring deep engineering confidence to solve even the most complex application conditions.
Whether you need standard or custom products, we match them to your required certifications (such as CE, ATEX, ISO 9001, SIL, IECEx). While a single factory may not hold every single credential, our core value is sourcing and consolidating the exact certified products that meet your specifications—saving you valuable time in vendor evaluation and comparison.
Whether you need a single unit for testing or bulk supply for a new production line, we are fully committed to driving your success.
What is an ultrasonic level transmitter, and what are the different types?
Ultrasonic Level Transmitter is a non-contact instrument designed to measure liquid levels, vessel heights, and solid material positions.
It typically consists of three core components: an ultrasonic transducer (sensor probe), a driver circuit module, and an electronic LCD display unit.
By measuring the time elapsed between emitting an ultrasonic pulse toward the target surface and receiving its reflection, the system calculates the exact distance between the sensor and the medium to determine the accurate level data.
| Industry Product Category | Core Application Scenarios | Key Technical Configurations (Addressing 6 Core Factors) | Typical Custom / Sourcing Demands | Core Certifications & Protection |
| 1. Smart Water & Municipal Type | Wastewater treatment plants, municipal drainage networks, underground manholes, stormwater pumping stations, open-channel flow measurement. | • Dead Zone & High Humidity: Anti-condensation probe design. • Protection & Cabling: IP68 Submersible / Split Type (prevents damage from flooding); supports 10–50m shielded cables. • Algorithmic Features: Integrated conversion algorithms for Parshall flumes and rectangular weirs. | • Low power consumption (12V DC / Solar powered). • Wireless modules (NB-IoT / 4G / LoRaWAN). • RS485 (Modbus-RTU) protocol. | IP68 Ingress Protection; CE Certification. |
| 2. Chemical & Corrosive Type | Hydrochloric/Sulfuric acid tanks, neutralization pits, electroplating baths, highly corrosive wastewater sumps. | • Media & Materials: Fully sealed PVDF / PTFE (Teflon) probe, resistant to strong acids and alkalis. • Environment & Pressure: Ambient temp & pressure (<80°C, -0.1 to 0.1 MPa). • Vapor Compensation: Echo gain compensation algorithms for volatile gas atmospheres. | • Adjustable aiming flanges or large-size ANSI/DIN PTFE flanges. • Enclosure options: SS316L or anti-corrosion coatings. | Gas Explosion-proof Certifications: Exia IICT6 Ga (Intrinsic Safety) Exd IICT6 Gb (Flameproof). |
| 3. Solid Bulk & Powder Level Type | Cement silos, plastic granule hoppers, crushed stone/ore bins, agricultural grain silos. | • Range & Power: Derated range by 1.5–2× (e.g., 30m–60m high-power transducers) to boost weak echoes from sound-absorbing materials. • Beam Angle: Narrow beam angle (<6°) to minimize sidewall reflections. • Mechanical Structure: Equipped with an Aiming Flange to adjust transducer angle toward material slopes. | • Anti-dust accumulation sensor face design. • 4–6 high-capacity relays (for feeder/alarm control). | Dust Explosion-proof Certification: Ex tD / Ext A21. |
| 4. Standard Industrial & Water Treatment Type | Pure water tanks, industrial circulating water pits, fire water tanks, reclaimed water storage. | • Cost-Effective Selection: Standard ranges of 5m / 10m / 15m. • Materials: ABS engineering plastic probe + Aluminum alloy/ABS enclosure. • Electrical: Standard 24V DC 2-wire 4–20mA (with HART) or 220V AC 4-wire. | • Standard thread connections (G1.5″, G2″, M60×2). • OEM branding, custom housing color, and logo printing. | IP67 Protection Rating; CE / ISO 9001. |
| 5. Hydrological & Open Water Type | Rivers, lakes, reservoirs, flash flood early-warning systems, floodgates. | • Range & Precision: 10m–30m long-range measurement with high accuracy on calm water (±1mm to ±3mm). • Environmental Requirements: Wide operating temp (-40°C to 60°C); UV-resistant outdoor build with wave filtering algorithms. • Mounting Geometry: Bridge or cantilever bracket mounting, avoiding bank obstructions. | • Low power / sleep mode (battery and solar power integration). • SDI-12 or RS485 dedicated hydrological protocols. | IP68 Rating; Outdoor lightning & surge protection. |
| 6. Hygienic & Sanitary Type | Food-grade purified water tanks, beverage compounding vats, atmospheric pharmaceutical intermediate tanks. | • Materials & Sanitation: Non-toxic FDA-compliant materials with smooth, dead-leg-free surfaces to prevent bacterial growth. • Process Connection: Sanitary Tri-Clamp / Sanitary Flange. | • CIP (Clean-in-Place) and SIP (Sterilization-in-Place) endurance. • Mirror-polished SS316L stainless steel enclosure. | FDA Material Compliance; 3-A / EHEDG Sanitary Standards (for advanced models). |
Industry Applications of Ultrasonic Level Transmitters
Cost-effective, non-contact, continuous level and open-channel flow measurement engineered for water treatment, corrosive chemicals, bulk storage, and municipal infrastructure under ambient pressure conditions.
Smart Water, Wastewater & Open Channels
In sewage treatment plants, underground manholes, stormwater pumping stations, and open-channel flow monitoring (Parshall flumes), Ultrasonic Level Transmitters provide completely non-contact measurement that eliminates maintenance caused by debris, ragging, or aggressive sludge.
Equipped with anti-condensation transducers and IP68 submersible sensor designs, these transmitters seamlessly integrate with wireless IoT networks (NB-IoT/4G/LoRaWAN) for remote urban flood monitoring.
Chemical Processing & Corrosive Storage Tanks
Chemical storage facilities require robust level instruments to handle aggressive reagents such as hydrochloric acid (HCl), sulfuric acid (H₂SO₄), caustic soda, and electroplating fluids under atmospheric conditions.
Fully encapsulated PVDF and PTFE (Teflon) probes isolate the sensor electronics 100% from chemical vapor corrosion, preventing material degradation while maintaining ±3mm high accuracy on calm liquid surfaces.
General Industrial Water & Storage Utilities
For factory utility monitoring—including raw water reservoirs, fire water storage tanks, cooling tower basins, and reclaimed water systems—ultrasonic transmitters offer the most cost-effective continuous level solution.
With standard 5m, 10m, and 15m measuring ranges and durable ABS housing, these transmitters deliver reliable 4-20mA analog and relay output control for automated pump start/stop automation without mechanical wear.
Hydrology, Rivers & Reservoirs
Open surface water monitoring across rivers, natural lakes, dam reservoirs, and irrigation canals demands long-range non-contact sensors capable of enduring harsh outdoor weather and thermal fluctuations.
Integrated temperature compensation algorithms automatically adjust acoustic sound velocity across day-to-night temperature swings, ensuring millimeter-precise water level tracking over extended distances up to 30 meters.
Light Bulk Solids, Granules & Hopper Storage
Measuring level in plastic granule bins, stone crushers, agricultural grain silos, and wood chip hoppers requires acoustic transducers engineered to overcome acoustic wave absorption caused by solid materials.
By selecting properly derated measuring ranges (1.5–2× power margin) and using swivel aiming flanges, ultrasonic transmitters reliably track material repose angles and prevent bin overfill.
Food, Beverage & Pharmaceutical Water Storage
Processing plants in dairy, beverage mixing, and purified water (PW) utilities require hygienic level sensors designed with non-toxic, smooth surfaces that conform to strict FDA sanitary standards.
Equipped with quick Tri-Clamp connections and smooth, dead-leg-free transducer faces, ultrasonic sensors provide non-contact continuous monitoring without risk of fluid contamination.
Ultrasonic Level Transmitter Interactive Ordering Matrix
Professional Non-Contact Ultrasonic Level & Flow Transmitters for Water Treatment, Chemical Sumps, Open Channels, Slurry Basins & Storage Tanks.
All-in-one sensor & transmitter enclosure
Remote wall-mount display host (up to 50m cable)
With Parshall / Weir flume calculations
Low power consumption field transmitter
Blind zone: 0.25m | High resolution
Blind zone: 0.35m | Standard liquid tanks
Blind zone: 0.50m | Deep sumps & open channels
Blind zone: 0.60m | Large water reservoirs
Blind zone: 0.80m | Solid silos & tall vessels
Blind zone: 1.00m | Heavy dust / Long range
Standard general water & neutral liquids
Strong acid, alkali & organic solvents
Aggressive vapors & chemical splash resistance
Hygienic process & mechanical durability
Threaded male connection (<10m range)
Threaded male connection (≥10m range)
ANSI 150lb / EN1092-1 PN16
Standard mounting flange for long range
L-shape wall/bridge bracket for open channels
Sanitary quick-release clamp
Standard ambient outdoor / open channel
Extended temp with auto temp compensation
Special ceramic/metal sensor construction
Built-in transducer temperature sensor
Standard 2-wire / 4-wire analog output
Fieldbus digital communication
Multi-drop network connection
Up to 2~4 SPDT relays for pump control/alarm
Battery powered remote cloud telemetry
Standard 2-wire / 4-wire power
Mains power supply (4-wire split unit)
Low power consumption remote sites
Autonomous long life battery pack
Non-Ex general industrial protection
Intrinsically safe approval
Flameproof heavy explosion protection
10m underwater continuous submersion rating
Lightweight economic enclosure with LCD
Heavy industrial powder coated housing
Harsh marine & chemical environments
Sewage, sumps, intake channels, rivers
Acids, alkalis, corrosive liquids
Parshall flumes, weir plates monitoring
Grain, gravel, plastic pellets, powder silos
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FAQ For Purchasing Ultrasonic Level Transmitter
What is the process for purchasing ultrasonic level transmitter from Instrava supplier ?
1. Inquiry (We will respond to your inquiry within 24 hours to confirm specifications and initiate the process.)
2. Quotation (Quotation timelines vary based on the project type and your specific requirements. Standard stock items are quoted within one day, while special orders require three days or a mutually agreed-upon timeframe.)
3. Product Selection (We will present 3–5 product options and pricing for your approval. During this stage, we verify the manufacturer’s production capabilities and relevant national certifications.)
4. Contract, Prepayment, and Production (A 40% prepayment is required to initiate production at a qualified facility. For stock items, we promptly arrange for product testing and packaging.)
5. Interim Payment (Upon successful completion of production and quality inspection, the next 50% of the total amount is due. For stock items, this payment is made after packaging is complete.If the transaction amount does not exceed $50,000, the remaining 60% is paid.)
6. Shipment (You may designate a freight forwarder, or we can arrange shipping for you.)
7. Receipt of Goods (Our Quality Guarantee: When your cumulative order value reaches $50,000, you pay the remaining 10% only after receiving and verifying the product quality. We let our quality do the talking.)
8. After-Sales Service (We actively address and resolve issues through both online and offline channels. We place great importance on after-sales support, as it reflects our responsibility and reputation—the foundation of Instrava’s long-term growth.)
What are the advantages of buying products from Instrava ?
Buying from Instrava gives you the best of both worlds—the direct-from-source pricing of a factory, combined with the professional service, product range, and risk mitigation of an elite sourcing partner. Here is how we deliver value to your business:
Unbiased Market Curation (More Choices & Better Prices): Unlike single factories that only praise their own capacity, or traditional trading companies restricted by personal connection networks, we evaluate the entire Chinese manufacturing landscape. We benchmark and source from multiple verified factories to secure the most competitive pricing and the exact product specifications you need.
100% Transparency (Your “Brain” in China): We never hide behind the veil of being a “fake manufacturer.” We act as your transparent, in-country purchasing department. You always know exactly who is producing your goods, how much they cost, and what the real lead times are.
Uncompromised Quality & Risk Mitigation: Our business is built on long-term partnerships, not one-off high-profit transactions. We perform strict, independent quality control from your perspective before shipment, protecting you from post-purchase defects and communication breakdowns.
Streamlined Communication & Service: No more dealing with slow, production-centric factory service. We provide a single, highly responsive point of contact that manages the entire supply chain—from negotiation and quality checks to shipping logistics—saving you time and reducing headaches.
What types of industrial automation instruments products can you purchase from Instrava?
Level gauge, flowmeter, transmitter, level switch, Gas Alarm Controllers etc.
How to ensure the reliability of the purchased products?
Our customer-centric philosophy prioritizes their procurement needs.
1. Initially confirm the manufacturer based on product pricing and the strength and qualifications of the production factory.
2. Verify the manufacturer’s production environment through video and on-site inspections to check the compliance of the entire product manufacturing process.
3. Ensure post-production product testing and retain data and video evidence from the verification process(testing and verification methods vary depending on the product).
How does Instrava ensure product protection and physical safety during cross-border shipping?
Firstly, we confirm the packaged products with the factory (different products require different packaging and shipping methods. Heavy equipment and bulk shipments are securely secured within sea freight containers using custom-designed engineering steel frames, heavy-duty multi-layer wooden crates, and industrial-grade vacuum rust-proof bags. Precision instruments are protected against impacts and maintained in a stable position; the factory has extensive experience in this area. Custom labels are affixed to the outer packaging).
Secondly, we maintain communication with the freight company to confirm the condition of the goods and advise them to handle the loading and unloading processes with care.
What warranty policies and after-sales technical support does Instrava offer to international customers?
1. Instrava offers a comprehensive 12 to 24-month warranty (specific warranty period depends on the product line), covering all manufacturing and component defects.
2. When online technical support is needed, customers can connect with factory engineers online. Real-time guidance is provided for installation, on-site calibration (for instruments), and commissioning. When on-site engineer support is needed, we will arrange for an engineer to visit the site.
3. In the event of component issues, we will ship replacement parts via international express delivery (DHL/FedEx) to minimize your project downtime.
4. Whether a product requires replacement or repair will be clearly stated in the purchase contract.
Why Trust Instrava?
We select manufacturers from a neutral, impartial standpoint, always with your best interests in mind.
Our very existence depends on helping you source the products that are the perfect fit for your needs.
Based in China, we are able to conduct on-site inspections of production environments and product quality firsthand.
We help you avoid intermediaries posing as factories.
We facilitate smoother after-sales support, eliminating time zone issues and the delays often associated with dealing directly with factories.
Our multilingual team ensures effective communication.
For a trading startup, every interaction with a client is a precious opportunity—a sign that you are willing to place your trust in us and give us the chance to prove ourselves.
In the digital age, while information is easily accessible, misconceptions often cloud the trust between people.
Instrava relies entirely on trust; it is our core philosophy and the foundation of our existence in society. It is the fundamental basis for our long-term growth and our commitment to serving the community.
Please place your trust in us.
