IS-RSM3B.1 - Available in 2025

  • IS-RSM3B.1 - Available in 2025
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    IS-RSM3B.1 - Available in 2025 ISM-IS.RSM3B.1

    The i.safe MOBILE IS-RSM3B.1 is a Bluetooth-enabled remote speaker microphone for use in Zone 1/21 hazardous environments, offering wireless communication flexibility for mobile workers in oil, gas, and chemical facilities. With a powerful front-facing speaker, noise-cancelling microphone, and programmable PTT and emergency buttons, it supports crystal-clear voice communication even in high-noise zones. Compatible with i.safe MOBILE Ex smartphones and tablets, the IS-RSM3B.1 is ideal for users needing hands-free mobility, secure communication, and rugged performance in explosive atmospheres.

    Get all the details on the i.safe IS-RSM3B.1 with our full specs and data sheet.
    Download the Data Sheet for full specifications

    IS-RSM3A.1 Full View

    Performance and Processing Power

    Clear, high-volume audio is delivered through a powerful front-facing speaker rated at over 103 dB. The built-in omni-directional microphone includes active noise cancellation, ensuring voice commands and calls are clear even in loud industrial environments like processing plants and mine sites.

    Button Functions and Input

    The IS-RSM3B.1 includes a full set of programmable buttons: Push-to-Talk (PTT), SOS, volume controls, and a multifunction key. Users can customize button functions using the i.safe Button App, tailoring device interaction for safety alerts, app shortcuts, or communication needs.

    Connectivity and Interface

    This model features Bluetooth 5.2 with BLE, enabling wireless pairing with compatible i.safe MOBILE Ex smartphones and tablets. It eliminates the need for a physical connection, offering greater freedom of movement in the field. A USB-C port supports configuration and charging, and the included desktop charger (IS-DCRSM3x.1) provides a dedicated docking solution for shift-based operations.

    Battery Life and Charging

    A built-in 2200 mAh rechargeable battery powers the device throughout extended shifts. It supports fast charging via USB or drop-in dock, and provides continuous operation for typical workdays without the need for mid-shift recharging. Charging status is easily monitored, ensuring the mic is always ready for deployment.

    Certifications and Intrinsic Safety

    The IS-RSM3B.1 meets international safety requirements for use in flammable and explosive atmospheres:

    • ATEX Zone 1/21: II 2G Ex ib IIC T4 Gb / II 2D Ex ib IIIC T135°C Db

    • IECEx Zone 1/21: Ex ib IIC T4 Gb / Ex ib IIIC T135°C Db

    • NEC500/CEC (on request): Class I, II, III Div. 1 Groups A-G

    These certifications make it safe for deployment in oil refineries, gas plants, chemical manufacturing, and other Ex-rated locations.

    Usability and Physical Design

    Weighing just 205 g and measuring 104 × 64 × 32 mm, the IS-RSM3B.1 is built for all-day comfort and rugged use. Its IP68 rating ensures protection against dust and water, while its MIL-STD-810H compliance guarantees resilience against drops and vibration. It operates reliably from -20°C to +55°C, making it suitable for both indoor and extreme field environments.

    Included Accessories and Integration

    Every unit comes bundled with a desktop charger, safety documentation, and full compatibility with i.safe MOBILE platforms including Smart-Ex®, IS540.x, and Tab-Ex® series. It’s optimized for push-to-talk and lone worker communication solutions across Ex-rated field operations.

    Support & Availability 

    For all products supplied by Roaming Technologies our extended warranty support comes at no charge for the lifetime of the device. This means we'll be your single point of contact to assist in any warranty or repair issues, ensuring your device gets back into the field as quickly as possible.

    Shipping costs and delivery lead times will vary depending on the product options and order quantities required.  With the use of Australia-wide distribution centres, drop shipments direct from vendors and overnight shipping, we offer industry leading product availability.

    If you have any questions about the i.safe IS-RSM3B.1, feel free to call us at 1300 131 933 and speak with one of our specialists, or contact us online for assistance.

     

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