Clamp meters, also known as clamp-on ammeters, are widely used to measure current without breaking a circuit. Many modern clamp meters can also measure voltage, resistance, frequency, and temperature.
Two brands often compared in this space are UEI and Fluke. While Fluke is considered the gold standard for professional measurement tools, UEI targets technicians who want reliable performance at a lower cost.
Brand Overview
Fluke
Fluke has built a reputation for precision, safety, and ruggedness. Its clamp meters are trusted by professionals in industrial, commercial, and residential settings. They are known for consistent calibration, excellent build quality, and long-term reliability, though they come with a higher price tag.
UEI
UEI focuses on the HVAC and electrical trades, offering strong value through feature-rich products at a mid-range price. Their meters typically include dual displays, temperature inputs, and trade-specific functions. While durability and long-term stability may not match Fluke’s, UEI delivers excellent performance for the cost.
Technical Comparison
| Feature | UEI Strengths | Fluke Strengths | Considerations |
|---|---|---|---|
| Features & Value | Packed with functions like temperature measurement, dual displays, and wireless capability at lower prices. | Offers precise measurement ranges, advanced accessories like iFlex probes, and professional-grade stability. | UEI wins on value; Fluke wins on engineering quality. |
| Accuracy & Calibration | Adequate for most trade work. | Industry-leading accuracy and long-term calibration reliability. | For critical measurements, Fluke is preferred. |
| Build Quality | Robust enough for field use but not as rugged. | Extremely durable, drop-resistant, and built to withstand harsh conditions. | Fluke’s superior construction offers peace of mind for long-term use. |
| Support & Warranty | Good basic warranty coverage. | Extensive global service network with calibration centers and parts availability. | Fluke provides better after-sales support. |
| Ease of Use | Trade-specific features simplify HVAC tasks. | Polished user interface, ergonomic design, and intuitive operation. | Preference depends on workflow and trade. |
| Price | Typically 30–60% cheaper for comparable features. | Premium pricing aligned with professional reliability. | UEI is ideal for budget-conscious users. |
Model Comparisons
UEI DL379B vs Fluke 323
The DL379B is an HVAC-focused meter with temperature measurement and dual display, while the Fluke 323 is a dependable, general-purpose meter known for accuracy and simplicity. The UEI offers more functions per dollar, while the Fluke is favored for precision and ruggedness.
UEI DL389B vs Fluke 376
The DL389B features a dual display and extra measurement modes useful for technicians. The Fluke 376 supports both AC and DC current with high accuracy and reliability. The UEI model provides versatility, while Fluke delivers more robust performance and longer lifespan.
UEI DL589 vs Fluke 902 FC
Both are high-end HVAC clamp meters. The UEI DL589 offers strong functionality at a lower price, whereas the Fluke 902 FC includes advanced wireless connectivity, superior build quality, and better measurement consistency. Fluke’s higher cost reflects its professional reliability.
Which One Should You Choose?
Choose UEI if:
- You’re budget-conscious but need strong functionality.
- You work primarily in HVAC or residential environments.
- You want advanced features at an affordable price.
Choose Fluke if:
- You prioritize durability, precision, and calibration stability.
- You work in industrial or safety-critical environments.
- You value long-term support and global service availability.
Final Thoughts
UEI clamp meters deliver impressive value for everyday trade professionals, offering many features found in higher-end tools at a fraction of the price. Fluke clamp meters, on the other hand, remain the professional benchmark—trusted for accuracy, ruggedness, and reliability in demanding conditions.
For most technicians, UEI provides excellent performance at a reasonable cost. But if you need absolute confidence in precision and durability, investing in a Fluke clamp meter is worth every dollar.