Armada PRO400 Handheld Graphical TDR Cable Fault Finder for Metallic Cable Shorts, Opens & Splices

Pinpoint Underground Faults in Coax, Twisted Pair & LAN Cables with Graphical Precision

The Armada PRO400 is a compact, high-resolution Time Domain Reflectometer (TDR) engineered for accurately locating faults in metallic cables with two conductors — including coaxial, twisted pair, LAN, buried decoder cable, and more. Ideal for irrigation, telecom, and lighting professionals, the PRO400 provides a graphical display of cable faults, showing the exact distance to opens, shorts, splices, or damaged sections.

With virtually zero dead zone, selectable impedance matching (25, 50, 75, 100Ω), and a VOP calibration range of 20–99%, the PRO400 offers flexible configuration for nearly any cable type. A built-in tone generator allows for easy cable tracing using a tone probe like the Armada Pro210F, and the backlit display ensures usability even in low-light or outdoor environments.

Rugged and IP54-rated, the PRO400 is ready for tough field work — delivering professional-grade performance at a value-driven price.

FEATURES

• Graphical TDR display shows precise fault locations on-screen
• Detects opens, shorts, splices, and end-of-line reflections
• Range selectable from 20 to 3,000 feet (7 to 1,000 meters)
• Velocity of Propagation (VOP) adjustable from 1% to 99%
• 4 selectable impedance settings: 25Ω, 50Ω, 75Ω, 100Ω
• Virtually zero dead zone for detecting faults close to the tester
• Built-in tone generator (810–1100Hz) for cable tracing
• Continuous or single-shot scanning modes
• Backlit 128x64 pixel display with auto shut-off
• IP54-rated for water/dust resistance
• Compact and lightweight — fits in the palm of your hand

SPECIFICATIONS

• Distance Range: 20 ft to 3,000 ft (7 m to 1,000 m)
• Accuracy: ±1% (with correct VOP setting)
• Resolution: ~1% of selected range
• Output Pulse: 5V peak-to-peak
• Pulse Width: 3ns to 3ms (auto-selected)
• Output Impedance: 25Ω, 50Ω, 75Ω, 100Ω
• Tone Generator Frequency: 810–1100Hz
• Scan Rate: 2 scans/sec or locked view
• Display: 128x64 pixel backlit LCD
• Battery Life: 7 hours continuous scanning
• Power: 4 x AA alkaline batteries (included)
• Dimensions: 165 x 90 x 37 mm
• Weight: 350g
• Protection: 250V AC input, IP54 enclosure
• Standards: IEC 61010-1, EN60950, EN61326-1