TECHNXT TNT333 OTDR – 120km Dual-Wavelength Fiber Tester

The TECHNXT TNT333 OTDR is a portable fiber optic tester built for fiber installation, maintenance, troubleshooting, and splice monitoring. It supports 1310nm and 1550nm wavelengths with a testing range of up to 120km, making it suitable for long-distance fiber links. Its 5.6-inch outdoor-enhanced touchscreen provides clear operation in field conditions, while touch and physical key controls offer flexible handling. The tester includes a 10mW Visual Fault Locator, real-time measurement for monitoring splicing work, and a warning function to help protect the OTDR module from harmful optical signals. With 8GB internal storage, it can save more than 80,000 measurement curves. PC remote access and control are also available for managing testing and measurement reports. Key Features 120km Testing Range – Designed for long-distance fiber links. 1310nm & 1550nm Support – Covers two common fiber testing wavelengths. 10mW VFL – Helps locate visible fiber faults. Real-Time Measurement – Useful for monitoring fiber splicing work. Outdoor-Enhanced Touchscreen – 5.6-inch display for field operation. Optical Signal Warning – Helps protect the OTDR module during testing. Large Curve Storage – Stores over 80,000 measurement records. Product Specifications Brand : TECHNXT Model Name / Number : TNT333 Product Type : OTDR Fiber Tester Maximum Testing Distance : 120km Wavelength : 1310nm / 1550nm Display Size : 5.6-inch Display Type : Outdoor-Enhanced Touchscreen Operation : Touchscreen + Physical Keys Event Dead Zone : As low as 1.5m Battery : 7.4V / 4.4Ah Lithium Battery Measurement Modes : Multiple Measurement Modes Fault Locator : Integrated 10mW VFL Internal Memory : 8GB Curve Storage : More than 80,000 Groups Input Method : On-Screen Computer-Style Keyboard Real-Time Testing : Supported PC Remote Access & Control : Supported Measurement Report : Printing Support