Customization:
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.
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.
With a 4-20mA output signal, integrate seamlessly into industrial control systems for automated monitoring, offering ~30% faster data transmission than pulse-based models*.
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*.
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*.
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.
Feature | Specification | Benefit |
---|---|---|
Accuracy | ±4% | Ensures reliable measurements in critical processes. |
Connection Types | Thread, Flange | Enables flexible installation in diverse systems. |
Medium Compatibility | Liquid, Gas, Water, Air, Oil | Versatile for industrial and commercial applications. |
Output Signal | 4-20mA | Simplifies integration with control systems. |
Material | Transparent plastic (acrylic/polycarbonate) + metal components | Combines visibility with structural durability. |
Design | Oval gear mechanism + conical ends | Reduces turbulence for accurate flow measurement. |
Display | Digital LCD | Provides clear, real-time flow rate data. |
Adjustable parameters include:
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.
Parameter | Base Model | Advanced Model | Pro Model |
---|---|---|---|
Accuracy | ±4% | ±2% | ±1% |
Material | Plastic + metal | Stainless steel | Corrosion-resistant alloy |
Output | 4-20mA | 4-20mA + RS485 | 4-20mA + RS485 + HART |
Temperature Range | -10°C to 80°C | -20°C to 120°C | -30°C to 150°C |
Technical Breakthroughs:
Version Selection Guide:
⭐⭐⭐⭐⭐ 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
⭐⭐⭐⭐☆ 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
⭐⭐⭐⭐⭐ 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
⭐⭐⭐⭐⭐ 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
⭐⭐⭐⭐☆ 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
Average Rating: 4.7/5 ⭐ (89 Reviews)
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."
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."
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."
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."
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."
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