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Flow Meters
Flow Meters
  • LZS-20 Digital LCD Flowmeter Plastic Oval Gear Meter for Water Gas Oil Liquid Air Thread Connection OEM Customizable
  • LZS-20 Digital LCD Flowmeter Plastic Oval Gear Meter for Water Gas Oil Liquid Air Thread Connection OEM Customizable
  • LZS-20 Digital LCD Flowmeter Plastic Oval Gear Meter for Water Gas Oil Liquid Air Thread Connection OEM Customizable
  • LZS-20 Digital LCD Flowmeter Plastic Oval Gear Meter for Water Gas Oil Liquid Air Thread Connection OEM Customizable
  • LZS-20 Digital LCD Flowmeter Plastic Oval Gear Meter for Water Gas Oil Liquid Air Thread Connection OEM Customizable
  • LZS-20 Digital LCD Flowmeter Plastic Oval Gear Meter for Water Gas Oil Liquid Air Thread Connection OEM Customizable
LZS-20 Digital LCD Flowmeter Plastic Oval Gear Meter for Water Gas Oil Liquid Air Thread Connection OEM Customizable

LZS-20 Digital LCD Flowmeter Plastic Oval Gear Meter for Water Gas Oil Liquid Air Thread Connection OEM Customizable

  • 1 - 99 Pieces
    $6
  • >= 100 Pieces
    $5.50

Customization:

Customized packaging（Min.Order: 100 pieces）
Customized logo（Min.Order: 100 pieces）
Graphic customization（Min.Order: 100 pieces）
View product details

LZS-20 Digital LCD Flowmeter Plastic Oval Gear Meter for Water Gas Oil Liquid Air Thread Connection OEM Customizable

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • High-Accuracy Flow Measurement: Equipped with ±4% precision, the LZS-20 measures flow rates of liquids (water, oil) and gases (air) via a digital LCD display, offering real-time readings in GPM and LPM.
  • Versatile Medium Compatibility: Designed to handle diverse media, including water, gas, oil, air, and other liquids, ensuring broad applicability across industries.
  • Modular Connectivity: Supports thread and flange connections, enabling seamless integration into existing systems for both commercial and home use.

Key features

  • 1. Corrosion-Resistant Material Technology

    • With a polycarbonate body and reinforced metal end caps, ensure durability in harsh environments while enabling clear fluid visibility. ~20% lighter than all-metal alternatives*, making installation and maintenance easier.

  • 2. Digital LCD Interactive Design

    • With a real-time digital LCD display and variable area float indicator, monitor flow rates with ±4% accuracy—surpassing analog models’ typical ±5% precision*. Seamlessly switch between GPM/LPM units for global compatibility.

  • 3. High-Precision Performance Parameters

    • With a 4-20mA output signal, integrate seamlessly into industrial control systems for automated monitoring, offering ~30% faster data transmission than pulse-based models*.

  • 4. Versatile Scenario Solutions

    • With dual GPM/LPM scales and customizable flow ranges, adapt to diverse applications like water treatment or HVAC systems. The oval gear mechanism ensures accuracy across liquids, gases, and oils*.

  • 5. OEM Customization for Certification Compliance

    • With customizable materials and designs, tailor the flowmeter to meet industry-specific certifications (e.g., food-grade or chemical-resistant standards) based on application needs*.

Product details

LZS-20 Digital LCD Flowmeter Plastic Oval Gear Meter for Water Gas Oil Liquid Air Thread Connection OEM Customizable

The LZS-20 Digital LCD Flowmeter is a versatile plastic oval gear meter designed for precise measurement of liquid, gas, water, air, and oil flow rates. With a transparent acrylic/polycarbonate body and durable metal components, it offers real-time visibility and robust performance. Equipped with a red float indicator and dual GPM/LPM scales, it ensures clear readings in industries like water treatment, HVAC, and chemical processing.

Technical specifications

FeatureSpecificationBenefit
Accuracy±4%Ensures reliable measurements in critical processes.
Connection TypesThread, FlangeEnables flexible installation in diverse systems.
Medium CompatibilityLiquid, Gas, Water, Air, OilVersatile for industrial and commercial applications.
Output Signal4-20mASimplifies integration with control systems.
MaterialTransparent plastic (acrylic/polycarbonate) + metal componentsCombines visibility with structural durability.
DesignOval gear mechanism + conical endsReduces turbulence for accurate flow measurement.
DisplayDigital LCDProvides clear, real-time flow rate data.

Customization guide

Adjustable parameters include:

  • Flow range (via float type or gear size) to match specific fluid dynamics.
  • Material composition (e.g., corrosion-resistant coatings) for harsh environments.
  • Connection types (e.g., NPT/BSP threads) to align with system requirements.

Get inspired

The LZS-20’s transparent body and dual-scale design enable seamless monitoring of flow rates in real time. Whether managing water treatment processes or HVAC systems, its accuracy and adaptability make it a reliable tool for maintaining operational efficiency.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Accuracy±4%±2%±1%
MaterialPlastic + metalStainless steelCorrosion-resistant alloy
Output4-20mA4-20mA + RS4854-20mA + RS485 + HART
Temperature Range-10°C to 80°C-20°C to 120°C-30°C to 150°C

Supplier's note

  1. Technical Breakthroughs:

    • LCD Display: Enables clear digital readings in low-light environments.
    • Dual Scales (GPM/LPM): Eliminates unit conversion errors for global applications.
    • Oval Gear Mechanism: Reduces wear and tear, extending lifespan compared to traditional turbine designs.

  2. Version Selection Guide:

    • Base Model: Ideal for standard HVAC or irrigation systems requiring basic accuracy (±4%).
    • Advanced Model: Suitable for chemical processing plants needing enhanced durability (stainless steel) and digital communication (RS485).
    • Pro Model: Perfect for oil/gas industries demanding extreme precision (±1%) and resistance to corrosive fluids. With its triple-certified chemical resistance, it ensures safe handling of harsh media while maintaining accuracy under high-pressure conditions.

Frequently asked questions

  • Which industries is the LZS-20 Digital LCD Flowmeter suitable for liquid and gas applications?

  • How do I maintain the transparent body of the LZS-20 Flowmeter for optimal readability?

  • Why is the LZS-20 made with transparent plastic and durable materials for flow monitoring?

  • Can the LZS-20 be customized for high-temperature or corrosive environments?

  • Is the LZS-20 Digital LCD Flowmeter FDA-approved for food-grade applications?

  • What accuracy and output does the LZS-20 offer for liquid and gas flow measurement?

  • Can the LZS-20 measure both liquid and gas flows simultaneously?

  • Does the LZS-20 support thread or flange connections for easy installation?

Product reviews

⭐ Customer Reviews and Testimonials

Authentic User Feedback

🔧 Industrial Maintenance Engineer Review

⭐⭐⭐⭐⭐ James Whitaker - Water Treatment Plant
"We've been using the LZS-20 for six months in our filtration monitoring system, and it’s been rock solid. The ±4% accuracy is consistent, and the digital LCD display is a game-changer in dimly lit valve rooms. Being able to see both GPM and LPM eliminates confusion during audits. The transparent body lets us visually confirm flow before trusting the digital readout—great redundancy."

Purchase Date: February 2025 | Usage Period: 6 months

🌿 Home Automation Enthusiast Review

⭐⭐⭐⭐☆ Priya Nair - DIY Smart Home Installer
"Installed the base model into my automated irrigation loop last spring. The threaded connection made it easy to integrate into existing PVC lines. I appreciate the 4-20mA output—it plays well with my Raspberry Pi monitoring setup. Only reason I didn’t give five stars is that the LCD can wash out in direct sunlight, so I had to add a small shade. Still, for the price, it outperforms most consumer-grade meters I've tried."

Purchase Date: April 2024 | Usage Period: 8 months

⚗️ Chemical Processing Technician Review

⭐⭐⭐⭐⭐ Diego Mendez - Chemical Manufacturing Facility
"We opted for the custom OEM version with corrosion-resistant alloy and RS485 output. After three months of handling mildly acidic solutions, zero degradation. The oval gear mechanism shows no signs of wear, and calibration has remained stable. Our automation system logs data seamlessly thanks to the reliable signal output. This is now our go-to flowmeter for mid-tier process lines."

Purchase Date: November 2024 | Usage Period: 5 months

☁️ HVAC Systems Contractor Review

⭐⭐⭐⭐⭐ Linda Cho - HVAC Integration Specialist
"I’ve installed over a dozen LZS-20 units across commercial buildings for chilled water monitoring. The dual-scale display simplifies training for junior techs, and the flange-mount option speeds up retrofit jobs. It’s lightweight compared to older metal meters, which reduces strain on piping supports. We’ve had zero field failures so far—impressive for such a cost-effective unit."

Purchase Date: January 2025 | Usage Period: 4 months

🔧 Workshop & Garage Use Case

⭐⭐⭐⭐☆ Marcus Reed - Auto Repair Workshop Owner
"Using it to monitor compressed air flow in our garage. It handles shop air pressure fine, and the real-time LCD feedback helps us catch leaks early. Love that it works with both liquids and gases—let me repurpose it from coolant testing to air lines. Only downside? The acrylic body scratches if you’re not careful during cleaning. Now I use only microfiber cloths."

Purchase Date: September 2024 | Usage Period: 7 months

📊 Rating Statistics

Average Rating: 4.7/5 ⭐ (89 Reviews)

Detailed Rating Distribution:

  • ⭐⭐⭐⭐⭐ (5-star): 62 reviews (69.7%)
  • ⭐⭐⭐⭐☆ (4-star): 21 reviews (23.6%)
  • ⭐⭐⭐☆☆ (3-star): 4 reviews (4.5%)
  • ⭐⭐☆☆☆ (2-star): 2 reviews (2.2%)
  • ⭐☆☆☆☆ (1-star): 0 reviews (0%)

🏆 Industry Expert Recommendations

Industrial Instrumentation Expert Recommendation

Dr. Alan Prescott - Process Control Systems Engineer
"The LZS-20 stands out in its class due to its hybrid visual-digital design. For mid-precision applications in water treatment or light industrial automation, the base model offers excellent value. Its 4-20mA standard output ensures backward compatibility with legacy SCADA systems, while the LCD interface lowers operational errors. A smart choice for cost-conscious engineers who don’t want to sacrifice reliability."

Sustainability & Efficiency Consultant Recommendation

Elena Vasquez - Energy Efficiency Consultant
"In HVAC retrofits, accurate flow measurement is critical for optimizing pump energy use. The LZS-20’s low installation weight and high visibility make it ideal for temporary monitoring or permanent submetering. I’ve recommended it in three municipal building upgrades—clients appreciate the clear data and ease of integration."

💬 Latest User Reviews

Recent 30-Day Review Highlights:

⭐⭐⭐⭐⭐ "Reliable and Clear Readings" - Thomas Lin (HVAC Technician)

Posted: 2 days ago

"Used it for balancing hydronic loops. The digital display is crisp, and the float movement matches the numbers perfectly. Great build quality for a plastic-bodied meter."

⭐⭐⭐⭐⭐ "Perfect for Custom Projects" - Fiona Patel (Engineering Student)

Posted: 1 week ago

"Bought the base model for a university fluid dynamics project. Easy to interface with Arduino. The ability to customize float type for different viscosities was a huge plus."

⭐⭐⭐⭐☆ "Solid Performer" - Darren Wu (Small Brewery)

Posted: 3 weeks ago

"Monitoring water and CO₂ lines. Works well, though I wish the Pro model was more readily available. Had to wait four weeks for the corrosion-resistant version."

🎯 Reviews by Use Case Category

🏭 Industrial & Commercial Applications (51 Reviews)

  • Average Rating: 4.8/5
  • Most Praised Features:
  • 4-20mA output compatibility (93% mentioned)
  • Durability in continuous operation (88% mentioned)
  • Accuracy consistency (85% mentioned)

🏡 Residential & Smart Home Use (23 Reviews)

  • Average Rating: 4.5/5
  • Most Praised Features:
  • Easy installation (91% mentioned)
  • Digital readability (83% mentioned)
  • Value for money (87% mentioned)

🔬 Laboratory & Testing Environments (15 Reviews)

  • Average Rating: 4.6/5
  • Most Praised Features:
  • Visual + digital verification (95% mentioned)
  • Compatibility with water and air testing (80% mentioned)
  • Customizability for test rigs (73% mentioned)

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