Pencil Probes from ETher NDE are specially designed eddy-current probes for surface inspection of both ferrous and non-ferrous materials. The series includes both standard “Absolute” versions and “Bridge/IB-Tech-Inside” versions with improved signal-to-noise ratio for demanding applications.

Key features and benefits

• Suitable for high-frequency surface inspection (e.g. 200 kHz, 500 kHz, 2 MHz, 6 MHz) – provides flexibility for different material types and defect sizes.

• Double shielding (outer stainless steel + inner ferrite) reduces ground effect and improves signal tolerance at edges and metal surfaces.

• Ergonomic design with plastic handle and neoprene grip for reduced operator fatigue and more reliable inspection.

• Quick replacement and flexible configuration: different tip lengths, angles (straight, 90°, 45°, 15°), and can be adapted to the customer's specific application.

• Large inventory for fast delivery – reduces downtime in the inspection process.

Technical highlights

• Frequency selection: 200 kHz (50-600 kHz), 500 kHz (150 kHz-1.5 MHz), 2 MHz (650 kHz-6 MHz), 6 MHz (2 MHz-18 MHz) for high resolution.

• Tip lengths from 28 mm up to 219 mm + total length up to 305 mm for some models.

• Choose between “Fine Tip” variant (smaller diameter tip) for high-resolution inspection and standard for general use.

• Micro connector for standard models; Lemo 4-Way connector for IB/Bridge versions with internal balance (“InBal”) technology.

Areas of application

• Surface inspection in production and maintenance where defects such as cracks, tears, corrosion damage or metallurgical variations must be detected.

• Applications in aviation, oil & gas, metal production, transportation and general metallic components.

• Field use and workshop inspection where flexibility in probe selection and quick changeover are necessary.

• Certification and control programs where traceability and customization are critical.

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