Intrinsically Safe Dual Hearing Protection Headset for Communication in High Noise and Hazardous Environments

Smart Noise Cancelling Communications Headset



Dual protection is often a requirement in many critical working areas where exposures may exceed 95 decibels (dBA), Sensear has integrated our SENS communication capabilities for face-to-face communication and 360° situational awareness into an intrinsically safe dual hearing protection headset series (SM1P-ExDP and SM1PW-ExDP) so users can effectively communicate without removing their hearing protection in these extremely high noise conditions and hazardous environments.

Based on the existing SM1P-Ex headset, and incorporating our unique dual protection feature; the ExDP headset series fills the marketplace need for a high performance intrinsically safe headset for extreme noise environments that require ATEX and IECEx certification. With customer focus and hazardous environments at the forefront of this robust headset design to enhance safety and communications for improved efficiency in high noise and hazardous workplace environments. It’s the perfect solution for your extreme high noise and hazardous environments such as explosive chemicals and fuels as well as combustible powders.


Users of the ExDP series will benefit from communication capabilities and safety features such as:

  • Connect to intrinsically safe two-way radios via Bluetooth or via cable
  • Connect to intrinsically safe mobile devices (HFP, HSP and A2DP profiles) via Bluetooth®
  • ATEX and IECEx approved
  • Headset to Headset communication (approx. 50m / 150ft range) via Short Range
  • Talk ‘face to face’
  • SENS™ Technology (Enhances speech while suppressing background noise to a safe level)
  • Programmable Volume Limiter (Limit ‘in-ear’ noise exposure to 82dB)
  • Retained 360° situational awareness (Remain aware of surrounding noises and hazards)
  • VOX capable
  • Built-in rechargeable battery (lithium-ion, 4-hour charge time)
  • Rugged and lightweight design
  • Up to 31 dB. NRR (noise reduction rating)
  • Noise-cancelling boom mic

Technical Specifications


IP Rating IP54
2250mAh Lithium ion Battery, 24 hours (wired connection) / 18 hours (wireless with Bluetooth/Short Range activated), 4 Hour Charge Time

Hearing Protection

Volume limiter 82 dB(A) [programmable] – only applicable when the headset is powered on
Double Hearing Protection Earmuffs + Earplugs
Region Australia / NZ USA / Canada Europe
Standard AS/NZS 1270 ANSI S3.19 EN352-1/EN352-3
Result SLC80 NRR SNR
HB 30 – 32 dB, Class 5 29 – 30 dB 37 dB
BTN 29 – 33 dB, Class 5 27 – 31 dB 36 -38 dB
HM 28 – 30 dB, Class 5 26 – 29 dB 38 -39 dB


SENS® 360oSituational Awareness 95 dB(A)
Voice transmission Boom microphone – noise cancelling, VOX capable
Face-to-face Sens® mode (< 95 dB)
Two-way radio SM1P model – Bluetooth or radio cable with Push-To-Talk module; SM1PW model – Bluetooth only
Short range Half-duplex communications, Up to 8 programmable FM channels, Up to 50 meters
Bluetooth Bluetooth® 3.0, 15 meters (49 feet)