Puddle Accuracy
- True positive detection rate
- 97.1%
- False positive rate
- 0.8%
Built for Axis ACAP
VisionAery Liquid Leak Detection on the Axis ARTPEC-9 platform is a signed app that runs on any ARTPEC-9 camera and can be licensed and managed through Axis platforms.
Available now



Detect puddles, spray, and visible vapor day or night. After dark, LLD works with artificial lighting or the camera’s near-infrared (NIR) illumination.



Accuracy was evaluated with 9,147 previously unseen frames, without per-site training, before the alarm engine was applied. Spray and visible vapor share a combined benchmark.
Read the Benchmark MethodologyTurn your Axis ARTPEC-9 camera into on-site leak detection—without a separate server or cloud processing. One signed application detects puddles, spray, and visible vapor, day or night, and easily integrates data and alarms into your existing VMS, SCADA, or other platforms.
The application auto-detects the camera model and adapts its UI to the camera’s capabilities.
Check System → Maintenance for your firmware version. Update it first if it is older.
A newer version keeps your zones, settings and license.
Never remove the app to update it.
That’s it! You’re ready to license the app and start detecting leaks 24/7.

Try it free on your own camera for seven days. Then choose a yearly plan or buy it outright, with support if you want it.
The full product with every integration. Draw zones, test in your environment, and verify integrations.
Pay yearly and always run the current version. Updates and support are included while the subscription is active.
Own the license outright. Add an optional support plan for updates and help from the people who built it.
Redeem your seven-day trial automatically on the ACAP service portal using your camera’s serial number, or ask us directly. Longer trials are granted upon request.
Once you decide you love the Liquid Leak Detection application, send us a purchase order (PO) for annual or perpetual licenses for your desired number of applications.
Once you have the codes, you’re ready to redeem the keys to launch your application. Redeem on the ACAP service portal or request keys from VisionAery.
Simply paste the key in the license area or upload the key file.

Choose your camera views, define what matters in each scene, and tune detection to your environment.
Start with the views you want to monitor. Create presets and guard tours from the LLD application or the camera’s own interface.
Save a preset for each area of interest, then create a guard tour to move between them.
Keep a standard fixed view, or enable PTZ mode to move a view area within the camera’s field of view. Use digital zoom and PTZ controls to frame each area, save presets, and build guard tours—even on a fixed camera.
More detail where it matters. A focused view area retains more pixel density on your area of interest, helping improve detection accuracy. Higher-resolution cameras make PTZ mode more effective.
Draw areas of interest to define where LLD should look for leaks, and exclusion zones to leave unwanted areas out of detection.
Bind both interest and exclusion zones to individual presets. Each zone activates only when its preset is in view, so one camera can precisely monitor multiple areas across your site.
Add as many interest and exclusion zones per preset as you need. Each interest zone has its own alarms, telemetry, and alarm-progression settings.

Name each area of interest and choose puddle detection, spray detection, or both. Then select the sensitivity that fits the scene and your operational needs.
Need more control? Open Advanced to customize the settings for your application.
Check your monitored areas after dark, too: artificial lighting or the camera’s NIR illumination should keep the scene clearly visible.

Send alarms to your VMS, connect telemetry to SCADA, or build a custom workflow with three prebuilt data integrations.
Bring LLD alarms into your existing video management system through the Axis event engine. These stateless alarms work with VMS platforms that support Axis event-engine integration.
Thoroughly tested with Genetec, Milestone, AXIS Camera Station, and Network Optix.

Connect alarm and telemetry data to your SCADA or other data platform through the embedded MQTT broker. Send payloads in standard JSON, Sparkplug B, or both to suit your receiving system.
Our MQTT payload and integration were built with MQTT co-inventor Arlen Nipper of Cirrus Link, who personally built our direct integration with Inductive Automation’s Ignition SCADA system.
A guide is also included for converting the MQTT payload into Modbus or OPC UA for systems that use those protocols.

Connect LLD to systems beyond VMS and SCADA. Send an alarm to a webhook receiver that triggers an email, sends an SMS, or archives snapshots and alarm history in an FTP folder.
LLD delivers the webhook; your receiving service handles the notification or file storage.

Bring rain data into LLD through one of three connections, so the application can account for wet weather when managing alarms.
Connect a rain sensor directly to the camera’s I/O ports when available. This is the preferred connection for local rain sensing.
Use an I/O module, such as an Advantech ADAM module, to bring a physical rain sensor’s data into the application.
With internet access from the camera, connect to a web-based weather service. Use weather data for the site’s coordinates to control the application’s rain function.
Shape LLD data to fit your existing systems—from how often it arrives to the visual context it carries.
Choose how often LLD sends telemetry updates to match your monitoring needs.
Choose whether to include a Base64-encoded snapshot of the camera’s live view in your data payloads, giving your receiving systems visual context alongside the data.
Edit payload topics and identifiers to fit the naming conventions your systems already use.
Use the available payload information to map LLD data into the right fields in your receiving systems.
See previous alarms in the application to review what happened and when.
On your site. In your systems.