StoneCircle TerminalFOR THE GATE

The gate keeps working.
Even when the internet
does not.

StoneCircle Terminal is offline access control for the gate. A resident can create a visitor code without mobile data, the gate can verify it without the cloud, and the passage is saved until the connection returns. Your perimeter stays operational instead of becoming a queue.

Book a free site assessment → What Limestone supplies →
99.4%Gate continuity
100+Protected spaces
2m 18sAverage panic response
Limestone technicians commissioning integrated access-control hardware at a Nigerian estate
CCTV uptime
99.4%
Verifying code
8821-D
Approved
Avg. open time
3.4s
Offline by design

Three steps.
No hotspot, no queue, no paper log.

StoneCircle Terminal and Terminal Core keep access decisions local, so approved residents and visitors can still enter when the internet is unavailable.

Review Stonecircle Terminal →
Cloud connection lostLocal verification ready
  1. 01
    The internet goes down

    The terminal automatically switches to offline mode. Residents can still create access codes without mobile data.

  2. 02
    Access still works

    Gate Terminal verifies the code on site in seconds. Approved residents and visitors can still enter without waiting for the internet to return.

  3. 03
    Everything syncs when the internet returns

    When the connection comes back, all gate activity recorded offline syncs automatically with the correct time and details.

Resident code accepted · Plot A4-02
Internet connection lost · Offline mode active
Visitor verified locally · Plot B2-11
Internet connection restored · Sync started
16 offline records synced

Two products are Limestone's.
The rest is partner-supplied.

We specify and integrate; certified partners supply and service. Hardware carries the manufacturer's warranty and the installing partner's service agreement. Limestone owns the integration and the record.

Automatic boom barrier controlling a vehicle entrance
01 — ACCESS · PARTNER-SUPPLIED

Boom barriers
for vehicle access.

Automatic and manual barriers integrated with the access record so every passage can be timestamped, attributed, and reviewed.

  • 3m, 4.5m, 6m arms
  • Safety sensor options
  • UPS / inverter ready
  • Terminal Core control
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Biometric access reader with fingerprint and card authentication
02 — BIOMETRICS · PARTNER-SUPPLIED

Biometric access
without loose keys.

Fingerprint, face, PIN, and card control for shared facilities, offices, utility rooms, and staff-only doors.

  • Face / finger / PIN
  • Card and mobile options
  • Role-based schedules
  • Fire-release interfaces
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Full-height pedestrian security turnstile
03 — PEDESTRIAN · PARTNER-SUPPLIED

Turnstiles
for controlled flow.

Tripod, swing, flap, and full-height pedestrian gates with credential readers and direction-aware event tracking.

  • Multiple form factors
  • Bi-directional options
  • Accessible lanes
  • Emergency release
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Outdoor infrared CCTV security camera
04 — SURVEILLANCE · PARTNER-SUPPLIED

CCTV systems
connected to the event.

High-definition perimeter and common-area coverage with local recording and faster review around gate events.

  • 2K / 4K options
  • Night coverage
  • Local NVR storage
  • Event correlation
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Fire detection and alarm control equipment
05 — LIFE SAFETY · PARTNER-SUPPLIED

Fire systems
that escalate clearly.

Addressable and conventional fire detection, notification, emergency release, commissioning, and maintenance.

  • Smoke + heat detection
  • Clear alarm zoning
  • Battery-backed
  • Response workflows
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Electric security fencing installed along a perimeter
06 — PERIMETER · PARTNER-SUPPLIED

Electric fencing
with zoned awareness.

Energised perimeter protection with zoned alarms, backup power, and response integration.

  • Zoned detection
  • 5 / 8 / 12 strand
  • Solar-ready options
  • Tamper monitoring
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SUNMI V2 Pro-class Android gate terminal
07 — VERIFICATION

Gate Terminal
for guards and checkpoints.

Verifies access codes on-site and keeps the gate moving even when the internet is unavailable.

  • On-site access verification
  • QR + NFC + keypad
  • Works without internet
  • Records every gate event
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Representative industrial enclosure for Limestone Terminal Core
08 — EDGE CONTROL

Terminal Core
keeps the gate working.

Runs access decisions locally when the internet is unavailable and automatically syncs every record when the connection returns.

  • Local access control
  • Works without cloud access
  • Automatic record sync
  • Keeps accurate event history
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VS
Gate Terminal vs Terminal Core — which one does your gate need?

Gate Terminal is the guard-facing kiosk at a staffed gate — verify codes, log walk-ins, raise incidents. Terminal Core is the always-on controller that keeps access decisions local: it verifies offline, drives the barrier, and reconciles to the cloud when connectivity returns. Staffed main gate? Both. Unmanned or secondary entrance? Terminal Core can run it alone.

₦
What does hardware cost?

Every estate's perimeter is different, so hardware is priced after a free site assessment rather than using a flat price. You will receive a written, itemised quote showing Limestone products separately from partner-supplied hardware. Many estates phase implementation across two or three budgets, starting with the gate. Partner-supplied hardware carries the manufacturer's warranty and the installing partner's service SLA, while Limestone owns the integration and operational record.

Spreading the cost: many estates phase installation across budgets or align it with a special levy — we'll structure the quote to match how your estate funds capital projects.

The integration story

The hardware knows
what the software knows.

Most security firms install hardware and walk away. StoneCircle Terminal wires its hardware into the same operating system your residents and FM use. One event, recorded in three places — at the gate, in the resident's app, and in the chairman's dashboard.

If the connection drops, the gate keeps deciding and recording locally. When it returns, Limestone reconciles the saved events into the same source of truth.

14:32:08
GATE
Boom barrier opens · Code 8821-D verified at gate kiosk
↳ logged on hardware · synced in 0.2s
14:32:08
APP
Adeyemi D. sees "Your guest arrived"
↳ push notification · timestamped
14:32:09
ADMIN
Visitor counter ticks +1 · 248 / 24h · against Block 4
↳ chairman dashboard updated
14:32:10
CCTV
Camera 03 captures entry · vehicle plate read · stored
↳ 30-day rolling NVR · auto-tagged to event 8821-D

From site visit
to live perimeter
in 21 days.

Limestone handles the site assessment, system design, integration and commissioning. Certified partners handle the installation of partner-supplied hardware, while Limestone brings everything together and trains your team on the system.

01 — DAY 1

Site assessment

Our engineer walks your perimeter with your FM and chairman. Marks placement for cameras, barriers, fence, panels. Estimate within 48 hours.

02 — WEEK 1–2

Supply & installation

Certified partners supply and install the specified partner hardware, including required civil works, cabling and mounting. Limestone coordinates the integration and prepares the system for commissioning.

03 — WEEK 3

Commission & train

Live commissioning with your FM. Your guards train on the kiosk. Your chairman gets a walkthrough of the dashboard. Sign-off only when it works.

04 — ONGOING

Support & maintain

Partner-supplied hardware is covered by the manufacturer's warranty and the installing partner's service SLA. Limestone supports the integration, system configuration and operational record.

Before and after

From a notebook and a rope to access you can trust.

Today, held together by hand
  • A notebook at the gate and a rope across the road
  • “Call me when you reach the gate”
  • When the data finishes, the gate stops
  • A paper log rewritten the next morning
  • Hardware nobody will service
On Limestone, a system of record
  • A terminal that verifies the code and lifts the barrier itself
  • A code created with no data, verified in seconds
  • The terminal keeps its own copy of the record. 99.4% gate continuity
  • Every passage keeps its real time and syncs itself
  • Certified partners with a service agreement. Limestone owns the integration.

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