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Lone Worker Alarms

SOS + GPS + Man Down + Two-Way Voice.

No Monitoring Fees.

Mercari Technologies Lone Worker Alarms are designed to protect employees, contractors, and individuals who work alone or in high-risk environments. Mercari Lone Worker Alarms offer multiple safety features, including:

  • Panic button (SOS alarm): Allows the user to signal for help instantly by pressing a button.
  • Man down alarm: No Motion alert automatically detects if a user has become unconscious, or is not moving for a set period and alerts emergency contacts.
  • Automatic Fall detection: Uses sensors to detect sudden movements and impact, automatically triggering an alarm.
  • GPS tracking: Provides real-time location data to help responders find the user quickly.
  • Two-way voice communication: Allows the user to speak with emergency contacts through the device’s built-in speaker and microphone.
  • Pre-alert function: A discreet button that can be pressed if a user feels unsafe, notifying a support person that assistance might be needed.

Spark SIM cards recommended. May also work with 2Degrees & One.nz

Take control of your lone worker alarm with self-management and monitoring capabilities.

MERCARI LONE WORKER ALARMS NEW ZEALAND

How It Works:

  • Wearable device (pendant/wrist/clip)

  • Press SOS or auto-detect fall/man-down

  • Alerts sent (SMS/call + GPS link to your contacts)

  • Ideal for:

    • Contractors & utilities field techs

    • Security patrols

    • Community healthcare visits

    • Rural/agri workers

    • Labs/warehouses (Pro Version – base station option)

    • Mercari Lone Worker Alarm – Quick Facts

      • Device type: wearable lone worker alarm (not an app, no software required)

      • Trigger types: SOS button + automatic fall/man-down

      • Alert types: SMS + phone call + Google Maps link

      • Monitoring: not required (own outright)

      • Coverage: 4G cellular (confirm with provider)

      • Setup: text-command programming / options include setup included

      • Warranty: 1 year

Lone Worker NZ

KIWI OWNED AND OPERATED

Lone Worker Alarms With SOS + GPS + Fall Detection

SOS Panic Button

The Lone Worker Safety Alarm is a compact and easily transportable device equipped with a single SOS Panic button. It provides lone workers with a quick and efficient way to seek assistance during emergencies, dangerous situation or hazardous circumstances. Its lightweight Personal Alarm design ensures that individuals can conveniently carry it at all times for added safety and peace of mind.

Location Track/Find

Equipped with advanced GPS technology, the lone worker device instantly transmits its GPS, Wifi or GSM triangulated location to users designated emergency contacts upon activation. Additionally, the device can be located by authorized individuals in cases of missing persons or when location information is unavailable using GPS Tracker location finding capabilities.

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Man Down / Fall Detector

The built-in fall detection feature provides reassurance to users that in the event of a severe fall where they are unable to respond, the lone worker Safety alarm with man down detection will promptly send an emergency SOS message to designated contacts without requiring manual activation.

Mercari Lone Worker with Base Pro version
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Mercari Lone Worker Alarm Quick Facts

  • Dedicated lone worker alarms (not smartphone, software or App dependent)

  • SOS + integrated fall/man-down/no-motion detection

  • Alerts: call + SMS + Google Maps location link

  • Up to 10 contacts (can include 111)

  • Buy outright, no ongoing monitoring fees

    What is a lone worker device?

    A lone worker device is a purpose-built safety alarm used by people who work alone or away from immediate help. If an incident happens, the worker can press an SOS button to send an emergency alert to nominated contacts, often including GPS location to speed up response. Many lone worker devices also include man-down / no-motion or fall detection, which can trigger an automatic alert if the worker becomes incapacitated. Unlike a smartphone app, a dedicated Mercari Technologies lone worker device is designed to be simple, reliable, and easy to activate under stress—helping organisations protect staff and strengthen lone worker safety procedures.

    How does the Mercari lone worker device work?

    The Mercari lone worker device is a dedicated safety alarm that sends an emergency alert fast when help is needed. The worker wears the device on-site and, in an incident, presses the SOS button to trigger alerts to nominated contacts (such as a supervisor or control room). The alert will include GPS location so responders can find the worker quickly. The Mercari LWD can also provide two-way voice communication and safety functions like man-down / no-motion or fall detection, which can trigger an automatic alert if the worker is incapacitated. Because it’s a standalone device (not a phone app), it’s designed to be simple to use under stress and reliable in real work conditions.

    How do You program the Mercari Lone Worker Device?

    You program the Mercari Lone Worker Device by setting coded text messages from your own phone  to the Lone worker alarm. Users decide key safety details —mainly who to contact and how alerts are triggered. Typically, programming includes adding your nominated phone numbers (e.g., supervisor, manager, after-hours contact), confirming the alert sequence (SMS/call) and enabling features such as man-down/no-motion or fall detection. Once saved, the device is ready to use: Pressing SOS sends an emergency alert and will include GPS location to help responders act fast. If you purchase a package with SIM/setup included, we can pre-program it so it arrives ready to deploy—otherwise you can follow the step-by-step setup guide provided with the device.

    Are there any ongoing monitoring fees?

    No — there are no ongoing monitoring fees required to use Mercari lone worker alarms. You buy the device outright and it sends emergency alerts directly to your nominated contacts (for example, a supervisor or manager), so you’re not locked into monthly monitoring contracts.

    The only ongoing cost is a SIM/mobile plan for connectivity (depending on your setup and coverage needs). This gives you predictable total cost of ownership while still providing fast SOS alerts and location sharing when help is needed.

    What are benefits for employers and workers?

    Mercari lone worker alarms deliver clear benefits for both employers and workers by improving safety, response speed, and confidence in the field.

    Benefits for employers: Lone worker alarms strengthen your lone worker procedures by providing a practical control for high-risk or remote work. They help reduce incident impact through faster escalation, improve visibility with location-enabled alerts, and support consistent safety processes across teams—without locking you into mandatory monitoring contracts. This can lower operational risk and improve duty-of-care outcomes.

    Benefits for workers: A dedicated lone worker alarm gives immediate access to help with a one-press SOS, plus features like man-down/no-motion or fall detection for situations where the worker can’t call for help. It’s simple to use under stress, doesn’t rely on a smartphone app, and increases confidence for people working alone.

    Who receives alerts and what do they get?

    With Mercari lone worker alarms, alerts go to the nominated contacts you choose—typically a supervisor, manager, control room, or after-hours responder. When an SOS is triggered (or an automatic event like man-down/no-motion or fall detection, if enabled), contacts receive an emergency notification that can include an SMS and/or phone call plus a GPS location link (e.g., a Google Maps link) so they can quickly identify who needs help and where they are. This direct-to-your-team alerting means you stay in control of your escalation process and can respond immediately.

    Does it work without a smartphone?

    Yes. Mercari lone worker alarms are dedicated safety devices, so they can work without a smartphone. The worker carries or wears the device and can trigger an emergency alert with a one-press SOS button (and, if enabled, automatic alerts like man-down/no-motion or fall detection). Alerts are sent directly to your nominated contacts, often with GPS location to speed up response. Because it doesn’t rely on a phone app, it avoids common issues like app crashes, notification settings, or a flat phone battery—making it a more dependable option for lone worker safety.

    How many contacts can I set?

    You can program Mercari lone worker alarms with up to 10 nominated contacts, depending on your configuration. This lets you set a clear escalation list—such as a supervisor, site manager, after-hours responder, or control room—so alerts reach the right people quickly. When the SOS button is pressed (or an automatic event triggers), the device follows the contact sequence you’ve set and can include key details like the emergency notification and GPS location link to help responders act fast.

    How long does the Battery last?

    Charging typically takes around 3 hours to reach full charge, and battery life is approximately 48–72 hours (depending on usage, signal coverage, and enabled features).

    Do I need a Charging Base Station?

    Without a base station: this option is often best for mobile workers who move between sites, vehicles, and client locations. It’s easy to charge via standard power/USB as needed, making it flexible for technicians, carers, inspectors, contractors, and anyone who isn’t returning to the same depot each day.

    With a base station: ideal for depots, offices, and shared devices, because it provides a consistent “home” charging point. The device can be docked between shifts so it’s always topped up and ready, reducing the risk of flat batteries and improving daily compliance with lone worker procedures.

    How much does a Lone Worker Alarm cost?

    The Mercari Lone Worker Alarm is a hardware purchase, so you pay a one-time, upfront price and there are no mandatory ongoing monitoring fees. Cost depends on the option you choose—such as the device on its own, a package that includes a base station, or a bundle with SIM/setup included for faster deployment. Many customers choose the bundle that best matches how their team works (mobile workers vs depot-based teams sharing devices). The only optional ongoing cost is a SIM/mobile plan for cellular connectivity. For current pricing and package details, see the Buy Now options on our website.

    Lone Worker Device Pro

    Option 1. $475+gst

    LONE WORKER ALARM

    Best for those mainly working outdoors.

    No charging base – Charge with supplied USB cable

    SIM card Not included.

    User to Set Up & program. Set Up manuals provided. 

    Option 2. $550+gst

    LONE WORKER ALARM + Base – No SIM

    Suitable Indoor & Outdoor Use

    Better for mainly indoor users—such as those in labs, offices or warehouses.

    Setup & Programming Included

    User to Provide Own SIM card

    Option 3. $599+gst

    LONE WORKER ALARM + Base + SIM

    Suitable Indoor & Outdoor Use

    Better for mainly indoor users—such as those in labs, offices or warehouses.

    Setup & Programming Included

    Spark Prepay SIM with $50 credit Included

    Ready to work out of the box