Intrinsically Safe Dual Hearing Protection Headset for Communication in Extremely High Noise 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 into an intrinsically safe dual hearing protection headset (ISDP) so users can effectively communicate without removing their hearing protection in these extremely high noise conditions.

Based on the existing SM1P IS headset, and incorporating our unique dual protection feature; the ISDP fills the marketplace need for a high performance intrinsically safe headset for extreme noise environments.

Users of the ISDP will benefit from these communication capabilities and safety features.



  • Connect to two-way radios via Bluetooth® or cable
  • Short Range Headset-to-headset PTT communication
  • Limit ‘in-ear’ noise exposure to 82dB
  • SENS® Technology – retained 360° situational awareness of surrounding noises and hazards
  • Rugged and lightweight design
  • Up to 31dB NRR (noise reduction rating)
  • Built-in rechargeable battery (lithium-ion)
  • VOX capable
  • 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 ANSI S3.19 ANSI S12.6 ANSI S12.6
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)