FLIR M400 is a premium multi-sensor camera combining 640×480 thermal imaging, 4× optical thermal zoom, 30× HD visible zoom and seamless Furuno integration for exceptional long-range target detection, identification and professional control. Read more.
The FLIR M400 Thermal / Visible Camera is built for owners and operators who need premium long-range thermal detection, visible HD identification and stabilized target control from the helm, with professional integration into compatible Furuno chartplotter and MFD systems. It combines a high-resolution 640 × 480 FLIR thermal sensor, 4× optical thermal zoom, an ultra-low-light HD visible camera, 30× optical zoom, an integrated tight-beam LED spotlight and active 2-axis gyro stabilization.
This is a serious step above the M364C range. The M400 is designed for larger yachts, commercial vessels, patrol craft and high-value installations where the camera needs to deliver more reach, more control and stronger identification capability in demanding conditions.
The M400 can be selected in 9 Hz or 30 Hz, depending on the desired thermal video refresh rate. Choose 9 Hz for controlled professional monitoring, or 30 Hz for smoother motion when tracking moving targets or using the camera actively while underway.
The M400 is also available as the M400XR, which adds target video tracking and firefighter mode for emergency-response or specialist operational use. For premium yacht, commercial and long-range monitoring setups, the standard M400 remains the focused thermal / visible choice.
Within the FLIR range, the M400 is positioned for premium multi-sensor imaging, long-range zoom, stabilized viewing and professional helm integration, including compatible Furuno multifunction display environments.
The M400 gives the operator three powerful tools in one stabilized marine camera: thermal imaging for detection, visible HD zoom for identification and an LED spotlight for target illumination when needed.
Thermal imaging helps detect vessels, floating objects, people and heat signatures in total darkness, glare and low-light conditions. The visible camera adds colour, shape, lights and fine detail. The spotlight helps support close visual confirmation or inspection when active illumination is useful.
For compatible Furuno helm setups, the M400 can bring premium FLIR thermal and visible video into the existing chartplotter or MFD environment, helping keep long-range camera viewing and control closer to the main navigation workflow.
For a closer look at FLIR’s advanced marine camera systems and how they support onboard visibility, you can watch Teledyne FLIR’s M-Series overview here:
The M400 is especially useful for:
Long-range night navigation on larger yachts and professional vessels
Thermal detection and visible identification from one camera system
Tracking vessels, navigation marks and distant objects with stabilized control
Inspecting targets or incident areas with the integrated LED spotlight
Maintaining a steadier image in rougher sea conditions
Adding premium video capability to compatible Furuno chartplotter, MFD or marine monitoring systems
The M400 uses a 640 × 480 VOx microbolometer and a 4× optical thermal zoom lens. This is a major performance advantage for long-range detection because optical thermal zoom keeps the target clearer before digital magnification is applied.
Its thermal field of view ranges from 24° to 6° horizontal field of view, with 1.5° HFOV using e-zoom. This gives the operator the ability to scan wider areas and then narrow the view for more detailed long-range observation.
For vessels that need stronger offshore awareness, commercial monitoring or more controlled target inspection, the M400 gives the helm a more powerful thermal platform than mid-range FLIR systems.
The visible camera gives the operator a detailed HD view when target identification matters. It uses a 1/2.8” CMOS sensor with up to 1920 × 1080 resolution at 30 fps, 30× optical zoom and 12× digital zoom.
This visible layer helps identify vessel type, navigation lights, harbour structures, deck activity and objects that need visual confirmation. Thermal imaging shows where attention is needed. Visible HD zoom helps confirm what is being seen.
For premium yacht, commercial and security-style use, that combination creates a stronger and more confident image from the helm.
The M400 includes a tight-beam LED spotlight rated at 580 lumens with a 5° divergence angle. This adds a practical identification tool when the operator wants to illuminate a target, inspect an area or support close-range confirmation.
The spotlight is especially useful in situations where the visible camera benefits from additional light, such as marina monitoring, incident inspection, low-light approaches or checking activity around the vessel.
The M400 uses 2-axis gyro stabilization to help keep the image steady while the vessel is moving. Vertical stabilization compensates for pitch, while horizontal stabilization helps maintain the field of view on the selected bearing.
This becomes especially important when using long-range thermal zoom or visible optical zoom. A premium camera system only delivers its full value when the image remains controlled, readable and useful at distance.
With 360° continuous pan and ±90° tilt, the M400 can scan around the vessel and stay focused on the area that matters.
The M400 offers strong integration for advanced helm and monitoring setups. It supports analog NTSC / PAL video, HD-SDI lossless video and four independent H.264 IP video streams.
FLIR M-Series cameras are designed to integrate with compatible chartplotters and multifunction displays from brands including Furuno, Garmin, Raymarine and Simrad. For Furuno users, the key check is the selected NavNet or compatible MFD environment, including display model, software version, video input, camera control and network setup before purchase.
For vessels with a more advanced electronics layout, the M400 is the stronger route when the camera needs to function as a premium onboard sensor, not a simple viewing accessory.
Camera Type: Premium multi-sensor marine camera with thermal, visible and LED spotlight
Thermal Detector: 640 × 480 VOx microbolometer
Thermal Zoom: 4× optical zoom, 4× continuous digital zoom
Thermal Field of View: 24° to 6° HFOV, 1.5° HFOV with e-zoom
Video Refresh Rate: 9 Hz or 30 Hz, depending on selected variant
Visible Camera: 1/2.8” CMOS, up to 1920 × 1080 at 30 fps
Visible Zoom: 30× optical zoom, 12× digital zoom
Spotlight: LED, 580 lumens, 5° beam divergence
Pan / Tilt: 360° continuous pan, ±90° tilt
Gyro Stabilization: Yes, 2-axis
Video Output: Analog NTSC / PAL, HD-SDI and four independent H.264 IP streams
Furuno Integration: Compatible Furuno chartplotter or multifunction display integration, depending on display model, software and network setup
Protection Rating: IPX6
Detection Performance
30 ft vessel: 12.78 nm / 23.67 km
Human-sized target: 1.57 nm / 2.90 km
NATO target 2.3 × 2.3 m at 50%: 3.79 nm / 7.03 km
Actual range can vary depending on camera setup, environmental conditions and operator experience, but these figures position the M400 as a premium long-range thermal / visible camera system for advanced navigation, monitoring and professional target identification.
Choose the FLIR M400 Thermal / Visible Camera if you want premium long-range thermal detection, visible HD identification, optical thermal zoom, LED spotlight capability and stabilized professional control in one system. It is a strong fit for larger vessels and demanding users who need more reach and image control than the M364C or M364C LR range.
For boats already using compatible Furuno chartplotters or multifunction displays, the M400 is a practical way to add premium FLIR long-range thermal and visible imaging to the existing navigation display environment.
Move to another FLIR model when the onboard requirement changes:
Choose the FLIR M364C LR Thermal Camera System if you want a long-range M364C platform in a more accessible dual-sensor configuration.
Choose the FLIR M364C Thermal Camera System if you want thermal and visible imaging for advanced navigation without stepping into the M400 range.
Choose the FLIR M400XR Thermal / Visible Camera if you need the M400 platform with target video tracking and firefighter mode for emergency-response or specialist operational applications.
Choose the FLIR M500 Camera System for an even higher-end professional camera system designed for top-tier long-range performance.
The M400 makes most sense when the buyer wants distance, control and identification power in a premium FLIR platform. It is the upgrade for vessels where thermal / visible camera performance plays a direct role in navigation, monitoring and operational confidence.
1. Where should the FLIR M400 be installed on a boat?
Install it high, stable and fully unobstructed. The M400 is a long-range camera system, so mounting height, vibration control and a clear line of sight have a direct effect on performance.
2. Can the FLIR M400 thermal camera be mounted behind glass?
No. Thermal imaging does not work properly through glass. The M400 should be mounted externally with a clear view around the vessel.
3. Can I control the FLIR M400 from a Furuno chartplotter or MFD?
Yes, if your Furuno display system supports FLIR camera control. Check MFD compatibility, software version, video input and control support before ordering.
4. What should I check before buying the FLIR M400?
Confirm the 9 Hz or 30 Hz variant, Furuno display compatibility when using it within a Furuno helm system, video integration, power supply, mounting position, cable routing and whether your vessel layout supports a premium long-range camera installation.
At Sail360, we select marine electronics for long-term value, technical reliability and real onboard usefulness, helping buyers choose equipment that fits their vessel, display system and navigation style.
