Product SKU: P3935-LR
Product Overview
Built specifically for onboard surveillance inside moving vehicles, the AXIS P3935-LR is a rugged 1080p dome camera engineered for the conditions that standard security cameras cannot handle. Designed for installation inside buses, trains, trams, ambulances, police vehicles, and fleet coaches, it combines Lightfinder low-light colour imaging with Forensic WDR to maintain usable footage through tunnels, underpasses, and rapid lighting changes. The 940 nm invisible IR LEDs provide clear black-and-white night vision without producing any visible glow that could distract passengers or drivers. Electronic image stabilisation counteracts the vibration and road shock inherent in moving vehicles, while the metal housing carries both IP66/IP67 ingress protection and an IK10 vandal-resistance rating. Replaceable M12 lens options allow field adjustment of the field of view to suit different vehicle layouts. The P3935-LR also complies with key transportation standards including EN50155, EN45545, and NFPA 130, making it a credible specification choice for rolling stock and mass transit projects.
Key Capabilities
Invisible 940 nm IR Illumination
Unlike standard 850 nm IR cameras, the P3935-LR uses 940 nm LEDs that produce virtually no visible glow. Passengers and drivers experience no red-light distraction during night-time or low-light operation, making this essential for cabin-facing deployments.
Electronic Image Stabilisation (EIS)
Vehicle vibration, road bumps, and rail track motion all introduce blur into footage. The built-in EIS system compensates in real time, producing steadier images that remain usable as forensic evidence even while the vehicle is in motion.
Lightfinder with Forensic WDR
Lightfinder delivers sharp colour images down to approximately 0.06 lux, capturing detail in dimly lit cabins without relying on IR. Forensic WDR manages simultaneous bright and dark zones such as open doorways or tunnel exits without washing out or crushing detail.
Transportation-Grade Ruggedness
The metal housing is rated IP66/IP67 for dust and water ingress and IK10 for impact and vandal resistance. An operating temperature range of -40 to +55 degrees Celsius covers extreme climates. Compliance with EN50155, EN45545, and NFPA 130 supports formal rolling stock and mass transit specifications.
Replaceable M12 Lens System
The standard 2.8 mm lens gives approximately 110 degrees horizontal and 62 degrees vertical field of view, covering a typical vehicle cabin width. Where a narrower or wider angle is needed for different vehicle layouts, alternative M12 lenses can be swapped in the field without replacing the camera body.
Local Storage and Resilient Connectivity
A built-in microSD slot allows local recording to continue if the network connection drops, which is important on vehicles moving through areas with intermittent connectivity. RJ45 or M12 connector options provide vibration-tolerant physical connections suited to mobile installations.
Best For
- Public Transit Fleets: Buses, trams, subways, and rail carriages where passenger cabin monitoring must cope with lighting changes, vibration, and the risk of deliberate vandalism – all addressed by the IK10 housing, EIS, and Lightfinder combination.
- Emergency and First-Responder Vehicles: Police cars, ambulances, and fire appliances where in-cabin surveillance must not distract operators. The 940 nm IR produces no visible red glow inside darkened cabins, preserving night-adapted vision for crew.
- Rail and Rolling Stock Projects: Formal rolling stock procurement where cameras must meet EN50155, EN45545, or NFPA 130 certification requirements. These standards are confirmed for the P3935-LR, supporting project compliance documentation.
- School Bus and Shuttle Operators: School and charter vehicle operators needing reliable cabin coverage during early morning and evening pick-ups in low ambient light, where Lightfinder colour imaging reduces the need for visible supplemental lighting.
Why Choose the AXIS P3935-LR
The AXIS P3935-LR occupies a narrow category of cameras that are genuinely engineered for onboard vehicle use rather than adapted from standard fixed-installation products. The combination of 940 nm invisible IR, EIS for motion blur correction, a -40 to +55 degrees Celsius operating range, and confirmed compliance with EN50155, EN45545, and NFPA 130 is not found in general-purpose dome cameras at this price point. Forensic WDR handles the abrupt lighting transitions that occur when a vehicle moves between lit and unlit environments, while the replaceable M12 lens system gives installers flexibility without stocking multiple camera SKUs. Built-in microphone and audio detection add an additional monitoring layer inside the cabin. For transit authorities, fleet operators, or integrators specifying cameras for vehicle interiors, the P3935-LR available at Security Wholesalers represents a purpose-built solution with the certifications and hardware design to match.
Buyer Decision Tips
Connector Version Selection: The P3935-LR is available with either an RJ45 or M12 connector. RJ45 suits installations where standard Cat cable is run through conduit to a fixed termination. M12 connectors are the preferred choice for installations subject to continuous vibration, as they lock positively and resist loosening over time. Confirm which connector variant matches your vehicle cabling plan before ordering, as swapping connector types in the field is not straightforward.
Lead Time Planning: The P3935-LR carries a 30-day lead time. For fleet rollouts or rolling stock projects with defined installation windows, factor this lead time into procurement schedules. Ordering ahead of installation milestones will avoid delays on multi-vehicle deployments where cameras are needed across several units simultaneously.
Key Features & Technical Specifications
| Resolution |
1920 x 1080 (Full HD 1080p) |
| Frame Rate |
Up to 25/30 fps |
| Low-Light Technology |
Lightfinder, colour imaging to approximately 0.06 lux |
| IR Illumination |
Invisible 940 nm IR LEDs (minimal visible glow) |
| Wide Dynamic Range |
Forensic WDR |
| Image Stabilisation |
Electronic Image Stabilisation (EIS) |
| Standard Lens |
2.8 mm, approximately 110° horizontal / 62° vertical field of view |
| Lens Mount |
M12, replaceable with alternative focal length options |
| Ingress Protection |
IP66 / IP67 |
| Vandal Resistance |
IK10 |
| Operating Temperature |
-40°C to +55°C |
| Transportation Certifications |
EN50155, EN45545, NFPA 130 |
| Audio |
Built-in microphone, external audio input, audio detection |
| I/O |
I/O ports for alarms and external triggers |
| Local Storage |
microSD card slot |
| Connector Options |
RJ45 or M12 (version dependent) |
| Power |
PoE Class 3 |
| Video Compression |
H.264, H.265, Axis Zipstream |
| Cybersecurity |
Signed firmware, secure boot, TLS/HTTPS, IEEE 802.1X |
| Additional Features |
View obstruction detection, focus monitoring |
Ideal Use Cases
Bus and Tram Passenger Cabins
The wide 110-degree horizontal field of view from the standard 2.8 mm lens covers most bus or tram cabin widths from a single ceiling-mount position. EIS handles the constant vibration from road surfaces, and Lightfinder maintains colour imaging in the mixed artificial lighting typical of transit vehicles at night.
Rail Carriage Interiors
EN50155 and EN45545 certification makes the P3935-LR directly applicable to formal rail procurement projects where onboard equipment must meet defined rolling stock standards. The IP67 rating and IK10 housing withstand the cleaning and maintenance conditions found in train carriage environments.
Emergency Vehicle Cabins
In ambulances, police vehicles, and fire appliances, the 940 nm invisible IR provides surveillance in dark cabins without creating visible light distraction for crew. The operating temperature range down to -40 degrees Celsius and IP67 protection suit vehicles deployed in harsh weather or remote conditions.
School Bus Monitoring
School bus operators can cover the full passenger area using 1 or 2 cameras given the wide field of view. Lightfinder colour imaging captures usable detail during early morning and evening routes without requiring supplemental lighting that could distract the driver or disturb students.
Utility and Mining Vehicles
Vehicles operating in dusty, wet, or rough-terrain environments place extreme demands on camera hardware. The dual IP66/IP67 rating blocks fine dust and sustained water exposure, while the -40 to +55 degree Celsius thermal range covers the extremes found in remote Australian mining and utility operations.
Commercial and Charter Coach Fleets
Coach operators running overnight or long-distance routes benefit from the microSD local storage, which keeps recording even when vehicles travel through areas with no mobile network connectivity. The IK10 vandal-resistant housing protects the camera from passenger interference on unsupervised overnight services.
Choosing the Right Model
- Choose this model if: You are installing surveillance inside a moving vehicle and need invisible IR to avoid passenger distraction, EIS to counteract road or rail vibration, and certifications such as EN50155 or NFPA 130 to meet formal rolling stock or transit procurement requirements.
- Choose a different model if: The installation is in a fixed building interior such as a retail store, office, or warehouse. The P3935-LR is engineered specifically for mobile, onboard environments. A standard indoor dome camera will offer a lower cost per unit and a wider range of AI analytics features for fixed-site applications where transportation certifications and EIS are not needed.
- Consider the connector version carefully: If the vehicle installation will subject the cable connection to ongoing vibration, the M12 connector version is the more appropriate choice over the RJ45 version. Confirm which version you are ordering as they are not field-convertible.
FAQs
- Will the IR LEDs disturb passengers or drivers at night?
No. The P3935-LR uses 940 nm IR LEDs, which sit beyond the visible spectrum for the human eye. Unlike 850 nm cameras that produce a faint red glow visible in dark environments, the 940 nm LEDs are effectively invisible during operation, making them appropriate for any passenger-facing or driver-cabin installation where night-time distraction must be avoided.
- How does the camera handle the vibration inside a bus or train?
The built-in Electronic Image Stabilisation (EIS) actively compensates for the frame-to-frame movement caused by road bumps, rail joins, and general vehicle vibration. This reduces motion blur in recorded footage and produces steadier streams that are more useful for identifying incidents or individuals after the fact.
- Does the P3935-LR meet the certification requirements for rail procurement in Australia?
The camera is confirmed compliant with EN50155 (railway electronic equipment), EN45545 (fire protection for rail vehicles), and NFPA 130 (fixed guideway transit systems). These are the most commonly referenced standards in Australasian rolling stock tenders. Always verify that the specific revision levels required in your project specification match the Axis documentation before submitting a camera as compliant.
- What happens to recorded footage if the network goes down while the vehicle is in a tunnel or remote area?
The P3935-LR includes a microSD card slot for local onboard storage. When network connectivity is unavailable, the camera can continue recording to the card. Footage can be retrieved once the vehicle returns to a network-connected environment or the card is physically removed for review.
- Can I change the field of view after installation if the standard lens does not cover the required area?
Yes. The standard 2.8 mm M12 lens gives approximately 110 degrees horizontal and 62 degrees vertical coverage. If a different vehicle layout requires a narrower or wider angle, the M12 lens can be replaced in the field with a compatible alternative focal length. This avoids having to replace the entire camera body if coverage requirements change between vehicle types in a fleet.
- How does the camera cope with tunnels and other abrupt lighting transitions?
Forensic WDR manages scenes with simultaneously bright and dark zones, such as the contrast between a lit cabin doorway and a dark seating area. Lightfinder maintains colour imaging at low lux levels, and the camera transitions smoothly between colour and black-and-white IR modes as lighting changes, reducing the blackout frames that can occur with lesser WDR implementations during rapid light level shifts.
- Is there audio recording capability built into the camera?
The P3935-LR includes a built-in microphone and an external audio input port, along with audio detection as an onboard feature. This allows the camera to capture ambient audio in the vehicle cabin and trigger events based on detected audio levels. Note that recording audio inside a vehicle may be subject to privacy legislation. Consult your legal obligations before enabling audio capture in passenger environments. The P3935-LR is part of the Security Wholesalers range of AXIS Communications products, and technical documentation is available to assist with compliance planning.
Additional Information
