Physical Attendance & Access Evidence

Know who attended.
Know which door opened.

CHKKT Attendance combines door and window sensors with physical RFID/NFC check-in to create a timestamped record of access to your properties. A location pin says a phone was nearby. CHKKT records what happened at the building.

Door & window events
RFID/NFC check-in
After-hours alerts
Timestamped history
14 Rodney Street · Property Access
LIVE
Current property state
SECURE
All monitored doors and windows closed
Last attendance
06:43:12
Today's verified site events
A. JONES · CLEANER · RFID CHECK-INVERIFIED
MAIN ENTRANCE · OPENEVENT
MAIN ENTRANCE · CLOSEDEVENT
A. JONES · CHECK-OUTVERIFIED
Main entrance● CLOSED
Rear entrance● CLOSED
Ground-floor windows · 4 sensors● SECURE
Gateway / cellular telemetry● ONLINE
Attendance that happened in the physical world

A pin on a map is not the same thing as crossing the threshold.

Phone geolocation can be stale, delegated or spoofed. CHKKT adds physical events: a credential is presented at the property and the door itself changes state. Together those events form a much stronger attendance record.

Who checked in?

Associate a worker, contractor or authorised visitor with a physical RFID/NFC credential presented at the site.

Which opening moved?

Door and window sensors record open and closed state changes as physical events.

Exactly when?

Create an ordered event history: check-in, entry, exit, duration and after-hours access.

!

Was it expected?

Alert when a monitored opening changes state outside a permitted schedule or without a corresponding attendance event.

How it works

Credential + physical access + timestamp.

The useful unit is not simply “someone's phone was near the property.” It is a chain of independent observations tied to a named site and monitored opening.

01

RFID / NFC check-in

A contractor presents their assigned credential at the property, generating an identity-linked attendance event.

02

Door / window sensor

Wireless magnetic sensing records the actual opening and closing of monitored doors, windows, gates or cupboards.

03

Cellular gateway

Events are forwarded remotely without requiring the contractor's handset or the property's Wi-Fi to be trusted as the evidence source.

04

CHKKT record

CHKKT correlates identity, access state and time into a searchable attendance and property-event history.

Monitoring without cameras

Observe access without turning the property into a surveillance set.

CHKKT records the events that matter: credential presentation, door/window state, time and alarm condition. That is often enough to prove operational attendance and detect unexpected property access.

Wireless opening sensors

Magnetic door/window state sensors can record open/close events without hard-wiring every monitored opening.

Physical check-in point

RFID/NFC attendance creates a site-specific credential event that can be correlated with the opening immediately afterwards.

Contractor attendanceRecord who checked in, at which property and at what time.
Door-event correlationMatch the physical opening event to the attendance record.
After-hours monitoringFlag openings outside configured schedules.
Window monitoringDetect a window left open or opened while a site is vacant.
Visit durationBuild arrival/exit histories for cleaners, builders and maintenance teams.
Multi-property viewMonitor an estate from one console rather than checking individual sites.
Independent communicationsUse a cellular backhaul rather than relying on a visitor's phone as the telemetry path.
Audit historySearch timestamped access events when a customer, landlord or manager asks what happened.
Where CHKKT Attendance fits

For work that happens when the client is not standing there watching.

Cleaners & facilities teams

Give clients an independent timestamped record that a cleaner attended the correct building and physically accessed it.

Landlords & vacant property

Monitor contractors, letting staff and unexpected door/window activity across HMOs, rentals and empty properties.

Builders & maintainers

Correlate contractor attendance with actual site access when verifying call-outs, maintenance visits and service-level commitments.

Evidence model

More than geolocation.

CHKKT is strongest when several independent events agree with one another.

Identity eventAssigned RFID/NFC credential presented at a named property
Physical eventDoor/window magnet changes from closed to open or open to closed
TimingServer-side timestamped event sequence and visit duration
Exception logicUnexpected opening, prolonged-open state, after-hours access or telemetry loss
ConnectivityBLE / wired credential reader as appropriate → gateway → cellular → CHKKT
OutputLive status, attendance record, alarm events and historical audit trail
Attendance is a physical event. CHKKT records more than where somebody's phone says it was.

Know who attended — and what actually opened.

Start with one property, one monitored entrance and a contractor check-in point. Then extend the same evidence model across doors, windows and the rest of the estate.

Talk to CHKKT →