Should You Buy a Dual-Mode UCI + Leeb Hardness Tester?
TEQTO TQ‑4Combi Review & Use Cases for 2025
In 2025, industrial quality control teams and field inspectors face growing demands for precision, speed, and flexibility. The TEQTO TQ‑4Combi rises to meet those needs by combining UCI (Ultrasonic Contact Impedance) and Leeb (Rebound) testing technologies in a single, compact instrument — delivering unmatched versatility in portable hardness testing.
But what are the real advantages of owning a dual-mode tester, and is it worth the investment?
🔧 What Makes the TEQTO TQ‑4Combi Unique?
| Mode | Best For | Primary Benefits |
|---|---|---|
| UCI | Thin-walled, small, or polished parts | Precise, low-impact testing on delicate surfaces |
| Leeb | Large, heavy, or rough-surfaced parts | Fast, easy field testing with minimal surface prep |
⚙️ Advantages of UCI + Leeb in One Tester
- Full-spectrum versatility: Test anything from gear teeth and weld necks (UCI) to heavy castings and shafts (Leeb)
- Field-ready convenience: Carry one tool instead of two — ideal for mobile techs and remote inspections
- Cross-verification: Use both methods on the same part for confidence in borderline or critical readings
- Higher ROI: Dual-use device reduces equipment costs for labs, NDT providers, or rental fleets
- Faster decision-making: No tool-swapping or reconfiguration needed between applications
🏭 Industrial Use Cases
The TEQTO TQ‑4Combi excels in scenarios where inspection teams handle diverse part types, mixed material inventories, or jobsite field work.
Top industries benefiting from dual-mode testing:
- Oil & Gas (pipes, flanges, valves)
- Power Generation (turbine blades, heat exchangers)
- Automotive & Aerospace (shafts, welds, gears)
- Fabrication Shops (QC across cast, forged, and machined goods)
- Third-Party NDT & Inspection Labs (versatility = competitive edge)
🔍 How Does It Compare to Other Options?
| Brand | Model | Dual-Mode? | Notes |
|---|---|---|---|
| TEQTO | TQ‑4Combi | ✅ | Affordable, Canadian-available, built-in switching |
| Proceq | Equotip 550 | ✅ | Premium model with separate probes; higher cost |
| TIME Instruments | T‑U3 | ⚠️ | Supports both modes but not fully integrated |
| Phase II | PHT Series | ❌ | Single-mode only |
| Other OEMs | HPU‑3000, THR‑X | ⚠️ | Unverified imports; limited Canadian support |
🧠 Key Specs & Highlights (TQ‑4Combi)
- Testing Modes: UCI + Leeb (selectable)
- Hardness Scales: HV, HB, HRC, HRB, HS, HL, and more
- Memory: Up to 100,000 readings
- Connectivity: USB + optional Bluetooth
- Display: Full-colour LCD with real-time graphing
- Calibration: Supports multi-point and custom settings
- Battery: Up to 16 hours of use
- Includes: Rugged case, test blocks, multiple probes
✅ Should You Choose the TQ‑4Combi?
Choose the TEQTO TQ‑4Combi if you:
- Need to test both large castings and small machined parts
- Want to maximize value with a single device
- Prefer a Canadian-available tester with fast delivery
- Offer inspection, QA, or rental services
- Value real-time flexibility across use cases
🔗 Related Resources
📦 Buy or Request a Quote
Buy TEQTO TQ‑4Combi Now
Or request a custom quote including calibration blocks, accessories, and volume discounts.