Cygnus — Probe T5B-MAUH 5MHz Twin Element (High Temperature)

SKU: 004-9561 | Cable Not Included

Overview

The Cygnus T5B-MAUH is a high-performance, 5MHz twin element (dual crystal) ultrasonic probe engineered for high-temperature, in-service thickness measurements and corrosion surveys in some of the world's most demanding industrial environments. As the most versatile probe in Cygnus Instruments' twin crystal lineup, the T5B-MAUH is the go-to choice for inspectors working across oil and gas, refining, energy, and process sectors — where accurate wall thickness data on hot, corroded, or coated surfaces is critical.

Unlike standard probes that require a component to be taken offline and cooled before inspection, the T5B-MAUH can measure directly on hot surfaces without any cooling period — reducing downtime, improving inspection efficiency, and enabling continuous in-service monitoring.

Please note: Cable is not included with this probe. Compatible cables are available separately — see the accessories section below.

Twin Crystal Design — Why It Matters

The T5B-MAUH features separate transmitting and receiving crystal elements — the defining characteristic of a twin (dual) element probe. This configuration delivers significant advantages over single crystal probes in corrosion inspection scenarios:

• Superior performance on corroded and pitted back walls — the twin crystal design excels where irregular back wall surfaces would cause a single crystal probe to struggle or produce unreliable readings
• Echo-Echo mode — measures through coatings up to 20mm (0.8 inch) thick without requiring their removal, eliminating the time and cost of coating removal
• Single-Echo mode — for direct, fast measurements on bare, uncoated materials
• Reduced near-surface dead zone — enables reliable readings closer to the surface than single element probes

High Temperature Performance

The MAUH designation distinguishes this probe as Cygnus' dedicated high-temperature variant of the T5B series. Key high-temperature capabilities include:

• Maximum surface temperature: 300°C / 572°F — suitable for in-service inspection of hot pipework, vessels, and process equipment without shutting down
• No cooling period required — contact the hot surface, take the reading, move on
• Exceptional wear resistance — the probe face is built to withstand repeated contact with rough, hot, and abrasive surfaces
• High temperature couplant compatible — for use with Cygnus High Temperature Couplant (SKU: 001-3735, rated -45°C to 412°C)

Key Specifications

Compatible Cables

The T5B-MAUH uses a Microdot connector. The following cables are available separately:

Compatible Instruments

The T5B-MAUH is designed for seamless integration with Cygnus ultrasonic thickness gauges, including:

• Cygnus 4+ General Purpose
• Cygnus 6+ PRO
• Cygnus 1 Ex (Intrinsically Safe)
• Other Cygnus gauges equipped with Twin Lemo 00 connectors

Ideal Applications

• High-temperature, in-service pipe and vessel wall thickness measurement
• Corrosion monitoring in oil & gas, refining, and petrochemical facilities
• Inspection of storage tanks, pressure vessels, and boilers
• Ship hull and offshore structure inspection
• Through-coating thickness measurement without coating removal
• Any application requiring reliable thickness gauging on hot, corroded, or coated ferrous and non-ferrous metals

About Cygnus Instruments

Cygnus Instruments is a globally recognized designer and manufacturer of ultrasonic thickness gauges and probes. Trusted by inspection professionals in the offshore, marine, aerospace, and energy industries for decades, Cygnus equipment is engineered to perform reliably in the harshest real-world conditions — and the T5B-MAUH is a prime example of that commitment.