Provides mines with two critical functions that helps ensure the safety and efficiency of miners at work The SENTRY is fusion of two technologies, combined in one miniature device, resembling two-way handheld: Real Time Location at all times, miner’s location is visible to a dispatcher and other Mine administrative personnel. This is advantageous in case of accidents and in prevention of the same, as well as in increasing worker’s efficiency. Two-Way Communication the same device that provides miner’s location also enables him to place or receive calls in an instant. He has only to press button, and speak. And SENTRY provides reliable transmissions deep underground, even when there’s no direct line of sight.

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Securing Mine Safety
Through Visibility

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Real-time location
When miners carry the SENTRY wireless
communication device, management knows
where they are at all times by simply looking
at a display on their PC or laptop. Whether
there’s an emergency, or simply to manage
traffic in the mine, the system displays who’s
in the mine shaft and where, in real time.
Assets can be tracked in the same way, with
one small tag that transmits location
information to your backend system.
What is SENTRY?
Provides mines with two critical functions that help
ensure the safety and efficiency of miners at work.
Two-way
communication
The same device that provides a miner’s
location also enables him to receive or place
calls in an instant. He has only to press a
button and speak.
And SENTRY provides reliable transmissions
deep underground, even where there’s no
direct line of site.

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Why use SENTRY?
Ensure the safety
of your miners
SENTRY allows mine management to locate all its
personnel instantly and communicate with them by
sending or receiving messages.
In the event of an accident, management has a head-
start in its response by knowing where each miner is,
with a clear line of communication that lasts hours,
even on remote power.
Improve efficiency
of operations
By tracking the flow of people and equipment
through the mine, your management team can create
the logistical deployment of men and resources that
ensures efficient processes inside the mine.
Meet regulatory
requirements
In response to mine accidents in recent years, federal
and local agencies worldwide are demanding
improved visibility of mine personnel whose lives are
at risk. To meet these mandates, the SENTRY system
allows mines to track and connect with miners in real
time, even during an accident.

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Sophisticated Technology Means
Enhanced Safety for Miners
In contrast with other systems that
provide solely last known, in-
zone/out-of-zone location, or
limited communication through text
messaging, SENTRY enables a miner
to simply press a button and speak.
In this way he no longer needs to
carry a separate mobile phone or
radio device.

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Innovation brings communication to RTLS
Our unique solution combines innovation
with established technology -- RFID --
which relies on radio transmission and
requires no line of sight to transmit. Our
technology design, for which multiple
patents are issued and/or pending, allows
both real-time location and voice
communications to integrate seamlessly
into your existing operating system.

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Tracking your assets
By equipping a SENTRY tag to assets,
including moving vehicles, mine
management can also view the
location and direction of equipment.
This can not only provide inventory
tracking, it can help prevent a
collision between vehicles.

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How it works
Carried on a belt, or worn on a hardhat, the
wireless communication device features real-
time location (RTLS) technology with an RFID
tag that transmits to access points installed
throughout the mine. Our servers calculate the
position of the device, even if the miner is on
the move. And the device’s clear voice
communication functionality and
programmable buttons allow a miner to speak
or send a message instantly.
For mine management, the data is useful not
only in real time, to identify the location of a
miner within the shaft, but to provide business
analytics that can help the mine better manage
operations resources.
The device can incorporate a number of
additional options such as accelerometer,
pressure, proximity or other sensors that
would enable detection of a problem such as a
man-down, and send an alert when a miner
needs help.

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Systems integrators/distributors
We partner with professionals worldwide who can
provide the personalized, ongoing service that only
local integrators can offer.
Our success relies not just on our innovative
technology, but also on the high quality of our
partners who are expert in systems integration and
provide continual support and maintenance.

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Ready to Take the Next Step?
Want to learn the benefits SENTRY can provide your mining operation?
Simply reach us by phone or by e-mail to find out how easy it is to get a
system up and running. We work with partners worldwide including local,
reputable IT systems integrators who understand how you run your business.
SENTRY is designed to provide what’s most important to a mining operation –
safety. With our technology your mine will have the visibility to meet
regulatory guidelines, as well as a tool to improve efficiency of the mine.
Edward Levin
Director, Business Development
+1 (720) 440-3545
edward@rtlservice.com