I.SAFE MOBILE IS-RSM3A.1 Remote Speaker Microphone Set

i.safe MOBILE IS‑RSM3A.1 – Wired, intrinsically safe Remote Speaker Microphone (ATEX/IECEx Zone 1/21)

The i.safe MOBILE IS‑RSM3A.1 is a wired intrinsically safe Remote Speaker Microphone built for ATEX/IECEx Zone 1/21. A fixed 16‑pin ISM interface provides a robust, interference‑free audio link where wireless solutions are restricted or undesirable. Its dynamic loudspeaker (>103 dB), dual‑microphone design and DSP noise processing deliver clear, intelligible speech in high‑noise environments.

Key capabilities

• Wired 16‑pin ISM connection for dependable audio and control.
• >103 dB speaker output to cut through industrial noise.
• Omnidirectional electret microphone with passive noise cancelling and DSP.
• IP68 sealing and MIL‑STD 810H durability; operating range –20°C to +55°C.
• Glove‑friendly controls and programmable keys via the Button App (volume excluded).
• Replaceable 2,200 mAh battery; desktop charger included.

Controls

• Left function key: PTT.
• Red function key: alarm/lone‑worker function.
• Up/Down: volume.
• Circular key: assignable.

Technical specifications

• ATEX/IECEx: compliant for Zone 1/21; marking: II 2G Ex ib IIC T4 Gb / II 2D Ex ib IIIC T135°C Db.
• Speaker: >103 dB.
• Microphone: omnidirectional, passive NC + DSP.
• Interface: 16‑pin ISM (wired).
• Dimensions: 104.26 × 64.0 × 32.2 mm; weight 205 g.
• Protection: IP68, MIL‑STD 810H.
• Temperature: –20…+55°C.
• Battery: 2,200 mAh, replaceable.
• Scope of delivery: RSM, desktop charger, USB‑C cable, safety instructions.

About i.safe MOBILE
i.safe MOBILE GmbH designs intrinsically safe mobile solutions and accessories for hazardous areas, including smartphones, tablets and RSMs for PoC communication and lone‑worker protection.

Contact Jenson ATEX Depot for quotations, availability and on‑site deployment support, including cabling and mounting options.