Table of contents

• Quick overview
• Best use case: Whats it for?
• Top features and benefits
• Whats included
• Key technical specs
• Downloadable manuals

Quick overview

The Uni-T UT661D makes it simple to locate blockages inside pipelines. Whether you’re a plumber or facilities tech, this detector is compact, accurate, and ready to go with a 35m signal wire and up to 50cm detection depth.

Best use case: Whats it for?

This tool is ideal for tracing plastic or metal pipes and pinpointing internal clogsperfect for homes, construction sites, and commercial plumbing systems.

Top features and benefits

• Detects pipe blockages up to 50cm deep
• Signal wire reaches up to 35m inside pipe systems
• Works with plastic, steel, and iron pipes
• Built-in buzzer and flashing light for real-time detection alerts
• Detects clogs with both sound and visual prompts
• Intuitive interface for easy operation on site
• Compact and lightweight receiver for mobility
• Built-in rechargeable lithium battery for both units

Whats included

• Uni-T UT661D Transmitter + Receiver
• Probe kit and charging cable
• Operational manual and 12-month warranty

Key technical specs

• Detection depth: up to 50cm
• Signal wire length: 35m
• Output sound > 93dB at 1cm, > 75dB at 0.5m
• Receiver weight: 0.26kg, Transmitter: 1.42kg
• Battery life: 10 hours
• Operating temp: -20C to 60C
• Waterproof probe: IP67 rated

Downloadable manuals

Get full operating instructions and specs at your fingertips:

• Download the English Manual (PDF)
• Download the Product Brochure (PDF)