PTI, compressor, and unit-repair photos linked to the validated container number — retrievable when a leasing company or shipping line asks for the file.
1CapturePTI, unit, compressor, alarms
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2LinkISO 6346 check on the phone
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3ArchiveSearch by container number
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4DistributeOptional AEMS / carrier rules
Offline in the workshop
Photo, video, audio
Optional AEMS distribution
No obligations — reply within 1 business day.
Where Reefer Documentation Quietly Costs Real Money
Reefer PTI and repair documentation records compressor functionality, electrical test results, temperature-unit condition, and alarm states. When records are missing, incomplete, or difficult to retrieve, claims, AEMS submissions, and audit reviews can require manual reconstruction.
In many reefer facilities, PTI and repair records are still
Captured on personal devices with no container-number link or PTI reference
Shared via WhatsApp or email — stored in chat threads, not inspection records
Filed without consistent structure — no link to compressor checks, alarm codes, or electrical test results
Difficult to retrieve when an agent, leasing company, or shipping line requests the PTI history
Not connected to AEMS or reefer M&R systems — documentation and operational records stay separate
The result in active reefer operations
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Electrical checks and compressor tests undocumented — no defensible evidence
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PTI results not linked to validated container numbers — records are difficult to review
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Repair claims unsupported — missing photo or test evidence leads to rejection
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Historical PTI records unrecoverable under time pressure from shipping lines
Structured reefer evidence turns "did the technician document it?" into "was the record produced and, where a tenant rule is configured, was the distribution attempt logged?" For the platform-level definition, see what is container operational evidence →
A Container-Linked Reefer Evidence Workflow — From Field to AEMS
ConPDS Checker turns reefer PTI/repair into a container-linked technical record for workshop and yard conditions. Records follow configurable retention; when a tenant distribution rule is configured, delivery to supported AEMS and carrier M&R systems can be immediate or delayed, and every attempt is logged.
01
Capture
02
Validate
03
Store
04
Share
05
Integrate
Step 01 — Capture
Capture PTI, Repair, and Technical Inspection Evidence in the Workshop or Yard
Technicians use the ConPDS Checker mobile app on their existing smartphones or tablets to capture structured evidence during pre-trip inspections, electrical checks, unit damage assessments, structural repairs, and refrigeration unit repairs. No additional equipment required.
In reefer environments, motion and sound matter. ConPDS Checker supports short video clips (up to 30 seconds) and audio recording — allowing technicians to document compressor noise, fan movement, alarm display states, and PTI test results as structured multimedia evidence linked directly to that container's verified record. This level of technical evidence is not possible with static photos alone.
Step 02 — Validate
Automatic Container Number Recognition with ISO 6346 Validation
The system reads and validates the container number on-device using AI-powered OCR with ISO 6346 check-digit verification (owner code, serial number, and check digit) — including offline. Wrong recognition is flagged, and the technician can retake the photo or type the container number in manually, so every PTI photo, repair image, and spare part record is linked to the correct container before it reaches the archive. Photos are stored under the validated container reference at capture, reducing manual renaming and documentation errors from the first capture.
Step 03 — Store
A Searchable Archive of Reefer Maintenance Photo Records
PTI photos, repair records, spare part documentation, compressor test evidence, and inspection notes are stored in a searchable cloud archive under configurable retention rules and organised by container number. The refrigerated container history can include pre-trip inspections, electrical checks, unit repairs, and post-repair validation for later retrieval during disputes or audits.
Step 04 — Share
Structured PTI Records for Agents, Shipping Lines, and Leasing Companies
Reefer facilities can share structured packages from the web dashboard. Checker retains the capture timestamp and can include device-recorded location when enabled and available as context, not independent proof of presence. Access and distribution attempts are logged, and archive retention is configurable.
Step 05 — Integrate
Integration With Reefer Management and AEMS Systems
When a tenant distribution rule is configured, Checker can send records to supported reefer management or M&R systems immediately or after a configured delay. Every attempt is logged with success or failure. Checker adds the evidence layer without replacing the receiving system.
Maersk AEMSEOSDepotMasterCMA-CGMIMARSMSC OVMRHapag FISCustom APIREST · FTP · SFTP& more on request
Beyond Photos — Capture What Only Video and Audio Can Show
In reefer inspections, the decisive evidence is often motion and sound — a compressor vibration, a fan running unevenly, an alarm display cycling through fault codes. ConPDS Checker captures short video clips and audio recordings as container-linked evidence on the same audit log as the photos.
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Compressor Sound
Record compressor noise at startup and under load — audible evidence of bearing wear, refrigerant issues, or abnormal vibration that no photo can capture.
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Fan & Motor Movement
Video clips show fan rotation speed, blade condition, and motor operation — documenting mechanical function that is invisible in a still image.
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Display & Alarm States
Capture cycling alarm codes, controller screen sequences, and live temperature readouts — dynamic display evidence linked to the container record.
Video up to 30 seconds · Audio recording · All media linked to validated container number · Stored in the same audit trail as photos
Why Reefer Documentation Has to Be an Evidence Layer
Standard container inspections document condition and damage. Reefer inspections also record technical system function — compressor operation, electrical integrity, alarm states, and temperature control — in a container-indexed record with configurable retention.
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PTI Verification
Pre-trip inspection results documented as structured photo and multimedia evidence — not informal notes or unlinked images.
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Electrical System Checks
Electrical test results and component condition captured at the point of inspection — linked to the validated container record.
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Temperature Unit Display
Controller display states, setpoint readings, and temperature unit condition documented as timestamped photographic evidence.
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Compressor & Fan Operation
Short video and audio capture records compressor noise, fan movement, and operational behaviour — evidence a static photo cannot provide.
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Alarm & Fault Code Documentation
Active alarms and fault codes photographed at the time of inspection — creating an unambiguous record of unit condition before and after repair.
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Pre- & Post-Repair Validation
Structured before-and-after documentation records repair completion with a retained capture timestamp for later review.
Defensible Evidence for Agents, Shipping Lines, and Lessors
Reefer inspections have to be shared quickly with agents, shipping lines, and leasing companies in a format they can act on. The evidence workflow replaces informal photo sharing with consistent, ISO 6346-validated container records — immediately retrievable, container-indexed, and defensible under audit. For depot gate-in and lease return documentation, see how the container depot inspection evidence layer applies the same workflow to depot operations.
✗ Informal Photo Sharing
✗ Evidence in chat threads — not against container or PTI records
✗ No container number link — retrieval depends on memory
✗ Conversation-app threads aren't organised by container number, retention policy, or central retrieval
✗ No audit log — no record of who received what or when
✗ Disputed claims become reconstruction work, not retrieval
✓ Reefer PTI & Repair Evidence Layer
✓ Every PTI and repair record linked to an ISO 6346-validated container number
✓ Searchable by container number, date, inspection type, or technician
✓ Capture timestamp retained; device-recorded location included when enabled and available as context
✓ Configured distribution attempts to AEMS, carrier M&R, and lessors logged with success or failure
✓ PTI and repair history retrievable within the configured retention period
Built for Technical Capture in Active Reefer Environments
Reefer workshops are demanding environments. ConPDS runs on the smartphones technicians already carry — photo, video, and audio capture in a single workflow, fully offline. Every capture is container-linked, stored against the inspection record, and immediately retrievable as technical compliance evidence.
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ConPDS Checker — reefer PTI evidence capture in workshop or yard environment
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Web dashboard — container-linked reefer evidence, searchable by container number, inspection type, and date
Works online and offline — AI recognition and all capture functions run without a network connection
Runs on standard iOS and Android smartphones — no additional hardware or device rollout required
Photos, video clips (30s), and audio recordings — structured multimedia evidence for compressor checks, PTI tests, and fault documentation
All media linked to the same verified container record in one audit trail — one container, complete technical evidence
Standard deployments can be onboarded within hours; broader integrations may take longer
Operating Inside High-Volume Reefer Service Environments
The workflow runs in service facilities and container depots across Europe, Africa, Australia and the Middle East — handling high volumes of PTI inspections, refrigeration unit repairs, and leasing-company documentation requests. Field-tested since 2013 and refined continuously against the operational reality of reefer work.
2013
Field-tested in operational depot and reefer environments since
100+
Depot locations and service facilities standardised on the evidence layer
10M+
Container-linked inspection and repair records stored and retrievable
Who Is This Designed For?
→ Reefer workshops handling daily PTI inspections and repair documentation
→ Container depots managing reefer units alongside dry container operations
→ Facilities integrating with Maersk AEMS, IMARS, MSC OVMR, Hapag FIS, or other reefer M&R systems
→ Operations that share inspection documentation with shipping lines or agents
→ Independent reefer service providers handling third-party units
→ Facilities performing PTI inspections for leasing companies that request structured records
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All reefer inspection and PTI data is encrypted on-device and in transit. Storage is EU-hosted with privacy-by-design. Role-based access controls ensure records are accessible only to authorised personnel — inside the facility and across the organisations the facility reports to.
PTI capture, repair-photo actions, access events, and distribution attempts are logged; each distribution attempt records success or failure
Supports PTI and repair evidence workflows with structured records, capture timestamps, optional device-recorded location as context, and audit logging
All inspection and repair data is encrypted on-device from capture and during transfer — protected from access by other applications
Guest portal access by shipping lines and leasing companies is scoped and fully logged per container — access can be restricted per container, per inspection, or per user role
Data retention periods are configurable to align with operational and regulatory requirements
Custom APIs · REST · FTP · SFTP · new integrations on request
Media Types
Photos · Video (30s) · Audio
All linked to validated container number
Security
Encrypted · Privacy-by-design
Role-based access · EU-hosted storage
Deployment
Operational within hours for a standard deployment
Full onboarding support included
Frequently Asked Questions About the Reefer Evidence Layer
Can ConPDS Checker support PTI documentation?
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Yes. Checker captures PTI photos, short video clips (up to 30 seconds), and audio notes. On-device OCR verifies the ISO 6346 check digit; wrong recognition is flagged for retake or manual entry. Records become searchable in the web dashboard after synchronization.
Which systems does ConPDS Checker integrate with?
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ConPDS Checker integrates with Maersk AEMS and other supported reefer M&R and depot management systems. When a tenant distribution rule is configured, records can be sent via REST, FTP, SFTP, or email immediately or after a configured delay. Every attempt is logged with success or failure; further integrations can be offered on request. See the Checker integrations page.
Can technicians use their own devices?
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Yes. The app runs on standard iOS and Android smartphones and tablets already in use by technicians. No additional hardware, specialist devices, or equipment rollout is required. If your technicians can take a photo on a phone, they can use ConPDS Checker from day one — no manuals, no classroom training, no resistance from the team on the ground.
Does it work offline in workshop areas?
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Yes. ConPDS Checker works fully offline — AI-powered container number recognition, photo capture, video recording, and all core documentation functions run without a network connection. Data queues on-device and synchronises automatically once connectivity is restored, making it reliable in reefer workshops, container yards, and terminal areas with intermittent signal.
How quickly can a reefer facility start using the system?
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For a standard deployment, ConPDS can fully onboard a reefer facility within hours. Broader integration programmes may take longer and are scoped separately.
Related Resources
The ConPDS evidence platform spans depot, reefer, and wash verticals — one workflow, one archive, one audit standard. Explore the integrations that deliver reefer PTI evidence to shipping lines, or the verticals most relevant to your operation.
Container Operational Evidence Platform
The category hub connecting reefer technical evidence with Checker, Tracker, Autogate, audit trails, and depot workflows.
Maersk AEMS, CMA-CGM, IMARS, MSC OVMR, Hapag FIS, Seaco, Triton — every shipping-line and leasing-company M&R integration ConPDS Checker supports, and how new integrations get built.
Make Reefer PTI & Repair Evidence Defensible by Default
If your facility runs reefer PTI, refrigeration unit repair, and leasing-company documentation requests every day, the question is not whether you have technical evidence — it is whether you can produce it on demand for the lessor audit, the AEMS submission, and the off-hire claim. ConPDS takes that off individual diligence and onto a measurable process.
A Disputed Reefer Charge Without Defensible Evidence Becomes Direct Operational Cost
✗ Claim rejected: A leasing company denies a spare-part warranty claim because no evidence links the replaced component to the validated container number or the specific PTI event.
✗ Release delayed: A container is held at the terminal because the unit's PTI result cannot be verified — the evidence was captured but cannot be attributed to the correct unit.
✗ Liability exposed: An electrical fault dispute cannot be resolved because the compressor and fault-code evidence from the last inspection lives only in a personal chat thread that has since been cleared.
✗ AEMS submission needs follow-up: A shipping line requests a PTI record via AEMS and the facility cannot produce a container-linked record, requiring manual resolution.
✗ Audit gap surfaced: PTI records remain spread across personal devices without a container-linked archive, configured retention, or distribution log, making later review harder.
See how structured reefer evidence fits into your operation.
