A Battery-Powered Two-Way Radio Headset for Hazardous Locations
The SM1B-IS sets a new benchmark for two-way radio communication in hazardous industrial environments, offering robust two-way radio performance with intrinsically safe certification for explosive atmospheres. Designed to integrate seamlessly with a wide range of two-way radio models, the SM1B-IS ensures reliable and efficient communication for teams operating in challenging conditions. Powered by a durable lithium-ion battery, the SM1B-IS provides uninterrupted communication during long shifts in demanding environments. Its rugged construction and exceptional battery life make it a dependable choice for hazardous workplaces.
Safety and situational awareness are central to the SM1B-IS. With advanced SENS® Technology, users can maintain critical environmental awareness while communicating clearly, even in high-noise settings. This unique feature promotes better hazard detection and team coordination, enhancing overall workplace safety. Combining state-of-the-art SENS® Technology with a tough, intrinsically safe design, the SM1B-IS is the ultimate solution for industrial teams in hazardous locations. It delivers unparalleled reliability, safety, and communication performance, making it the preferred choice for professionals in high-risk environments.
- Limit ‘in-ear’ exposure to 82 dB(A)
- Clear two-way radio communication in high-noise environments
- Compatible with industry-leading two-way radios via removable wired connection
Built-in rechargeable battery (Li-ion Polymer, 5-hour charge time)- 24-hour battery life for use in multiple shifts
- Available in Headband (27 dB NRR), Behind-the-Neck (24 dB NRR), or Helmet Mount (23 dB NRR) style
- Talk face-to-face via SENS® Technology - remain aware of surrounding noises and hazards
- Enhances speech while suppressing background noise to a safe level (for face-to-face conversations)
- Noise-canceling boom mic (VOX capable)
- Intrinsically Safe certified: TIA-4950-A, CSA C22.2 No. 157.92, & UL 913 5th Ed
NOTE: We will gladly repair or replace your Sensear product, at our discretion, with one of equal or greater value under our 1-year guarantee. This warranty does not cover abuse, alteration, theft, loss, or unauthorized or unreasonable use of your Sensear product. This warranty does not cover accessories.
General
IP Rating | IP54 | ||
Power | 2250mAh Li-ion Polymer Battery, 24 hours, 5-Hour Charge Time |
Hearing Protection
Volume limiter | 82 dB(A) [programmable] – only applicable when the headset is powered on | ||
Region | Australia / NZ | USA / Canada | Europe |
Standard | AS/NZS 1270 | ANSI S3.19 | EN352-1/EN352-3 |
Result | SLC80 | NRR | SNR |
HB | 31dB, Class 5 | 27dB | 33dB |
BTN | 27dB, Class 5 | 24dB | 30dB |
HM | 26dB, Class 5 | 23dB | 31dB |
Communication
360o Situational Awareness | 95 dB(A) | ||
Voice transmission | Boom microphone – noise canceling, VOX capable | ||
Face-to-Face | SENS® mode (< 95dB) | ||
Two-Way Radio | Radio cable with PTT module |

Does this headset best match your industry needs?
Get an estimate for your
SM1B-IS Headset
ACCESSORIES & CABLES
Sensear and SENS® Technology
Sensear is a global leader in developing and manufacturing best-in-class digital over-the-ear and in-ear industrial headsets for use with two-way radio and Bluetooth® communication devices.
Sensear's patented SENS® Technology simultaneously enhances speech and suppresses background noise so that users can verbally communicate, protect their hearing, and still maintain 360° situational awareness of their surroundings in noisy environments such as oil & gas, mining, construction, heavy manufacturing, and other industrial workplaces.
Sensear is Redefining Hearing Protection in High-Noise Environments
- Isolates and enhances speech
- Real-time speech separation
- Face-to-face
- Suppresses background noise to a safe level
- Enables speech to be heard above background noise
- 360° Situational Awareness
- Safe Communication
- Hearing Protection
- Isolates and enhances speech
- Real-time speech separation
- Face-to-face
- Suppresses background noise to a safe level
- Enables speech to be heard above background noise
- 360° Situational Awareness
- Safe Communication
- Hearing Protection