Vaisala ALARM


Lightning Alarm System (Automated) ALARM Manage lightning risk with lightning threat display and auto warnings


    Automated Lightning Alert and Risk Management System is an automated, easy-to-use display of approaching and overhead lightning threats.

    Manage lightning risk with lightning threat display and automated warnings

    • Cloud-to-ground lightning activity shown in three ranges and in directional octants when used with a Vaisala TSS 928™ sensor
    • Cloud lightning counts when used with a Vaisala TSS 928™ sensor
    • Electric field intensity measurements when used with up to seven Vaisala EFM II sensors
    • Displays data within a 30-nautical mile (56-km) radius around the location
    • Map overlays

    Custom Alarm Setting

    • Set alarms for specific lightning activity levels in each range and  directional octant and for cloud lightning
    • Set alarms for unsafe electric field levels
    • Choice of automatic audible, visual and e-mail message alarms
    • Send alarm messages to any e-mail-enabled cell phone or pager
    • Logically combine cloud-to-ground,cloud and electric field intensity alarms for complete customization for unique local environments
    Technical Specifications

     Technical Specifications


    Vaisala ALARM displays electric field measurements from up to
    seven Vaisala electric field mills and real-time lightning flash data
    from one Vaisala local lightning Thunderstorm Sensor. Vaisala
    ALARM system includes a personal computer, network card,
    software, color monitor and power strip with surge protection.

    Hardware Requirements

    Personal Computer


    ​Processor ​Pentium® III 750 MHz (minimum 500 MHz)
    ​RAM ​256 MB
    ​Hard Drive Space ​20 GB
    ​Ports ​2 serial
    ​Monitor ​17" (choose from standard and flat screen options)
    ​Resolution ​1024 x 768 pixels (or higher)
    ​Color Depth ​24 bit
    ​Peripherals ​CD-ROM drive, floppy drive, surge suppressing
    power strip

    Operating System

    ​Microsoft Windows® 2000 (Service Pak 6.0)

    ​Windows XP®, Windows NT® (Service Pak 2.0)


    The standard data link between the Vaisala ALARM system and
    Vaisala electric field mills and Vaisala local lightning is by direct
    serial connection via two RS-232 ports.

    Communications Options

    Communications card (32-bit PCI, 8 serial ports)
    For connecting to sensors within 10,000 feet of the system,
    communications hardware is a RS-232 cable, a RS-232/RS-422
    interface, and a RS-422 cable.
    Other configurations are available for distances exceeding
    10,000 feet.

    Additional Options

    ​Relay card
    ​32-bit PCI, eight outputs; termination card and
    connecting cable

    ​UPS ​APC 1000 VA, 120V or 240V
    Battery pack for UPS extended backup

    Support Services

    ​Vaisala ALARM system training can be tailored to your specific
    needs. Technical support is available online and via telephone,
    e-mail and fax. Contact your sales representative for details.