Tri-Flange™ Probed Test Plugs 393-2011-50

Model 70071647740 · 3M

Overview

The HT listen-only headband headset helps provide clear, concise sound reproduction and communication in high-noise environments. This comfortable and durable communications headset allows for long-term use under tough conditions.

Key features

Specially probed version of the standard plug
Works with the E-A-Rfit™ Validation System
Allows you to conduct an earplug fit test for the Tri-Flange and UltraFit Plus earplugs
*The NRR may overestimate the hearing protection provided during typical use

Applications

Engineering and fabrication shops
Power plants and compressor rooms
Mining and quarrying
Textile and printing

Standards and certification

Supplier: ISO 9001:2015 certified

PRODUCT DATASHEETDoc. SSLS/DS/HR-049 · Rev. 01 · 13-Oct-2026

Tri-Flange™ Probed Test Plugs 393-2011-50 – technical data

Technical specifications

Brand	3M
Model	70071647740
Case Quantity	5
Earplug Shape	Flanged
Material	Elastomeric Polymer
Product Colour	Transparent
Product Series	E-A-Rfit
Product Type	Probed Test Earplug
Recommended Application	Health & Safety Testing

Ordering information

Brand	3M
Model	70071647740

Inspection and care

Insert plugs with clean hands. Replace disposable plugs after each use. Inspect ear muff cushions for cracks and replace the hygiene kit at the interval the manufacturer gives.

Storage

Store in a cool, dry place away from direct sunlight, heat and chemicals.

Data given in good faith from manufacturer information and subject to change without notice. Select PPE based on a site risk assessment. Scan the code for the product page.