IS-RSM3B.1

ATEX Zone 1/21 Remote Speaker Mic

IS-RSM3B.1

ATEX Zone 1/21 Remote Speaker Mic

The Bluetooth® Remote Speaker Microphone is an excellent choice for Push-to-Talk (PoC) and lone worker protection applications in Zone 1/21 environments. Designed to be lightweight and ergonomic, it is easy to operate, even when gloves are worn.

Equipped with a powerful loudspeaker delivering sound levels up to 103 dB, the device also features strategically positioned microphones for consistent voice input capture from all directions. Its dual-microphone configuration enables intelligent passive noise cancellation, while the integrated Digital Signal Processor (DSP) actively reduces unwanted noise in real-time. This ensures clear and reliable communication, even in the noisiest of work environments.

Key Features

High audio quality thanks to intelligent noise cancellation using a DSP controller
Dynamic loudspeaker for noisy work environments
Customised key assignment and audio interface for accessories
Lightweight and user-friendly

Amplified Loudspeaker

Desktop Charger

Certificates

ATEX Certification

II 2G Ex ib IIC T4 Gb
II 2D Ex ib IIIC T135°C Db

IECEx Certification

Ex ib IIC T4 Gb
Ex ib IIIC T135°C Db

Technical Features

Dimensions	Size: 104,26 x 64,00 x 32,20 mm Weight: 205 g
Battery	2200 mAh replaceable
Connectivity	Bluetooth® 5.2
Types of protection	IP68 dust-/waterproof MIL-STD 810H Usable from -20 °C to +55 °C
Amplified loudspeaker	>103 dBm
Microphone type	Electret condenser microphone Omni-Directional
Function key red	Function key red (function key assignable for different 3rd party application; e.g. loneworker protection)
Function keys	Function key left Function key up Function key left Function key circular