Intrinsically Safe Headset OTTO Classic

(1 customer review)

Classic Headset is certified ATEX Zone 0, 1, 2 and Class I, II, III Division I use in hazardous environments. Backed up with IECEx approval. The Classic Headset provides excellent hearing protection in extremely loud environments. Among the features are a noise-canceling microphone, soft foam earpieces, straight in-line PTT cable, comfortable, cloth-covered ear seals, fully rotating boom mic, and 3 year warranty.

ATEX Rating

Hazardous Area Rating

IECEx certified



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Intrinsically Safe Headset OTTO Classic

  • ATEX Zone 0, 1, 2
  • Class I, II, III 
  • IECEx
  • Temperature Class: T4
  • Certified noise reduction of 24dB
  • Flexible, noise-canceling, boom microphone with replaceable windscreen
  • Comfortable, cloth-covered ear seals
  • Fully rotating boom mic for left or right side positioning
  • Soft foam earpieces
  • Straight, in-line PTT cable
  • 3 year warranty


Over-the-head style 

  • Has a padded suspension system to hold ear cups firmly in place for excellent hearing protection even with rigorous movement.

Behind-the-head style

  • Suspension system has an over-the-head strap for a secure fit under a helmet, hard hat or cap.

Introducing the Intrinsically Safe Headset OTTO Classic for clear communications in loud environments that is certified ATEX Zone 0, 1, 2 and Class I, II, III Division I use in hazardous environments.Backed up with IECEx approval.The Classic Headset provides excellent hearing protection in extremely loud environments. The in-line push-to-talk and a straight connection cable allow greater  range of movement than a coiled cable.

This Classic Headset is also supported with soft foam ear seals that fit snugly to minimize surrounding noise so users can clearly hear essential radio communications.With a noise-reduction rating (NRR) of 24 dB, the Classic Headset provides superior hearing protection.

It features an articulated, noise canceling boom microphone to send clear audio transmissions without distracting background noise, the straight, in-line PTT cable can be configured with a variety of connectors to fit a range of radio models, best performance in high noise, secure fit in active environments and outstanding durability.

Introduction to OTTO

Either behind the head, or over the head, includes one microphone, straight cord, with or without press to talk switch, with or without clothing clip and with various connection options for an intrinsically safe radio. 

Recommended Markets

  • Manufacturing Plant Engineers
  • Industrial Processing Technicians
  • Construction Teams
  • Airport Personnel
  • Racing Crews
  • Anyone in a High Noise Environment


Noise Reduction Rating (NRR):24 dB
Microphone sensitivity rating at 94 dB SPL:-48.5 dBV Typical
Cable pull from ear cup and mic/PTT, axial:40 lbs.
Operating temperature range:-30° C to +75° C
Storage temperature range:-40° C to +85° C
MIL-STD-810G compliant
3-year warranty

Intrinsically Safe Headset OTTO Classic Certifications:

Intrinsically Safe Headset OTTO Classic Other Resources:

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1 review

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What others are saying

  1. Offshore RigMan88

    Offshore RigMan88

    At first, I was scared that it was going to be a bad alternative. However, It has proved me wrong. This Intrinsically Safe Headset OTTO Classic is professionally built to work on ATEX Zone 0, Class 1 Division 1. Mic sounds nice and clear. Cable is clothed and feels durable. It is light yet extremely rugged and it fits my ears perfectly. This is by far the best that I have tested in a long time.

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