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  Home > Intrinsically Safe > Two Way Radios >

Sensear Intrinsically Safe Electronic Earmuff Headset
Intrinsically Safe Wireless Communication Headset

Intrinsically Safe Wireless Communication Headset

Choose from 3 different models as shown above. Note: Helmet model requires adapter accessory shown on the right.

Sensear devices are powered by the groundbreaking SENS® technology, which simultaneously combines speech enhancement with noise suppression to deliver a total high noise communications and protection solution by recognizing the different properties of speech and background noise.

SENS® enables users to remain aware of their surroundings, communicate in noisy environments and protect their hearing from harmful noise. Featuring a rugged design for heavy duty and general use in environments requiring intrinsically safe certification, the IS Smart Muff is a simple to use, extremely comfortable communication device that delivers face to face, two-way or Bluetooth® cell phone communication, all without the need to remove hearing protection. With Sensear's new IS Smart Muff, there's also no need to connect to other communication devices for short distance communication. The IS Smart Muff enables ear muff to ear muff communication in high noise environments up to 50 yards and is perfect for workers who work in groups where it is critical to communicate within short distances.

Combining Bluetooth? technology with advanced SENS® technology and a noise cancelling boom microphone, the IS Smart Muff offers one of the most advanced intrinsically safe hearing protection and communication devices available on the market today.

Ex Designation:

  • II 2G Ex ia IIB T3
  • I M1 Ex ia I
  • Ex ia I Ma
  • Ex ia IIB T3 Gb

Approval Type:

Class I, Division 1, Groups C,D T3C


  • Allows communication in environments above 85 dB (A)
  • Protects against all forms of noise - Impact, Intermittent, Continuous
  • Safely hear your surroundings whilst also hearing speech
  • Binaural Capability - Hear the direction of Speech and other sounds
  • Face to Face communication
  • 2-Way Radio Interface
  • Wireless Bluetooth? connection to cellular phones
  • Communicate short range distances Ear Muff to Ear Muff, up to 50 yards
  • Extra soft ear cushions for longwearing comfort
  • Industrial ruggedized

Technical Data:

Ambient temperature (Ta):-4 °F to +104 °F
FM reception:88.0 to 108.0 MHz
Talk time:min. 12 hours
Speaker output:limited to 82 db(A) in ear
Noise Reduction Ratings (NRR):25 db (Neckband)
23 db (Helmet Mount)
Weight:approx. 1 lbs

Download Datasheet

Item# Item Name Our Price Qty Add
ECO-AS000251-BTN Sensear Intrinsically Safe Electronic Earmuff Headset - Behind The Neck
ECO-AS000252-HM Smart-Muff Intrinsically Safe Electronic Earmuff Headset - Helmet
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Accessories for this product...
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Helmet Adapter - Europe

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Intrinsically Safe > Two Way Radios
Reliability Direct, Inc.
900 W. Main Street
Ephrata, PA 17522
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