SM1B-IS: smartMuff™ Battery-Powered - Intrinsically Safe
A Battery-Powered Two-Way Radio Headset for Hazardous Locations

SM1B-IS Series - smartMuff Battery-Powered - Intrinsically Safe

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.

How to buy Share this page Subscribe to newsletter

Product info

Features

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

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