InfiRay Outdoor MH25V2 Helmet Mountable Thermal Monocular - Arkayne

InfiRay Outdoor MH25V2 Helmet Mountable Thermal Monocular


Lead Time on this product: 15-30 days (email for more details)

The MH25V2 is the next big improvement in Thermal Monocular technology brought to you by iRay USA. Thermal monoculars offer a huge advantage over simply running night vision alone. As thermal technology increases, the clarity and performance continues to rapidly expand. While we don’t see much improvement year over year in analog night vision technology, thermal expands rapidly every year.

What mount should you run with your thermal monocular?

This unit purchased here does not include any mounting methods. If you would like to mount your iRay MH25 to your helmet, we can offer the panobridge found HERE or the Mod Armory Bridge HERE. Please read full description of the PanoBridge & Mod Armory Bridge prior to ordering.

The MH25 has extreme clarity, fast response and awesome function. This unit is light enough to wear on a helmet and small enough to carry in your pocket. If you are looking for a 640 core thermal with a tiny footprint, this is probably what you need.

*NOTE: You are PRE ORDERING ONE MH25V2. The pictures shown are of the V1 MH25. You WILL receive your MH25V2 as soon as inventory is received and allocated to pre-orders*



What is the Mini MH25V2 Thermal?

The MH25V2 is the next high performance 640X480 thermal monocular in the iRay lineup. The MH25V2 offers quite a few refinements over the original V1 that end users will find beneficial. It is designed to be seamless when used as either a handheld or helmet mounted thermal monocular. The V2 features better screen clarity, a more refined eyepiece, and internal video, photo, and audio recording. iRay has stepped their game up even further and has offered what is arguably the most potent, most compact helmet mountable thermal on the market.

The MH25V2 is an incredibly compact size and package. The 640×480 core with Matrix III processing ensures crystal clear identification of heat signatures. Folks will ask us often whether helmet mounting thermal is seamless. Running a unit like the MH25V2 makes the experience intuitive and offers end users a capability that is virtually unmatched. 1X base magnification is critical for helmet mounted use. Users of this unit will find that acclimating to helmet mounted use will be seamless and intuitive. Detection is advertised at 1375 yards. No longer will colors or camouflage hide the game you pursue. The MH25V2 features USB-C power input capabilities, just like the V1 MH25. Power is supplied by either a 16340 battery (1 hour) or a 16650 battery (2.5 hour run time). Ultimately, we will still recommend an external battery pack just like we have run with the V1 MH25.

What Mount should I use for the MH25?

We have several helmet mount options available for this unit on our website. The Panobridge or Mod Armory Bridge are two methods of attachment to either the  G24 or Photonis breakaway mounts.




Sensor Resolution


Optical Magnification

1X Base

Digital Magnification


Sensor Pixel Size

12 Micron

Sensor Frame Rate

50 HZ

Objective Focal Length


Objective Diameter


Objective F #


Detection Range

1375 yards

Imaging Modes

White, Black, Red, Rainbow

Mounting System

MUM Rail



Eye Relief


Operation Time

Up to 2.5 Hours with battery


12.1 Ounces

Weather Resistance

IP67 Rated


1.)What has changed with the MH25V2?

Users will find that iRay has addressed most of the main “concerns” end users had with the original MH25 thermal monoculars. Internal video and photo and audio recording is now a reality with the MH25. Yes, that means you can slay bode AND film it. Pretty rad. The PVS14 eyepiece is also…no more. Which means you spend less up front in order to get into the darkness. Previously, the PVS14 eyepiece was pretty much a requirement. iRay revised the eyepiece as well as the internal screen. Overall, users should expect similar performance to the V1, but in a more refined package.

2.) Does this mean that the V1 is now irrelevant. 

Absolutely not! The overall performance of the units is the same. So if you find a good deal on a v1, purchase without regret. The V1 is still one of our favorite units to date and is still very capable. It just needed some extra love to make it more perfect for helmet mounted use.

2.)What is the battery life of the MH25V2 

The greatest “pitfall” of the MH25V1, in our opinion, was the battery run time. The MH25V2 does have a BIT better battery life, but we still find that we need to run an external power supply when running for an entire night. The good news is the MH25V2 accepts the SAME power supply cord as the V1, so it is extremely easy to mount and run an external pack. Want to learn more about that? Check out our video here: MH25 Runtime.

2.) Can the MH25 be used with an external battery pack? 

Yes. The MH25 can operate from an external power pack so long as it is 5V or LESS. DO NOT EXCEED 5V! Many external cell phone chargers will work but you must make sure you use a battery pack that is 5V or less.

3.) What are proper batteries for the MH25? 

Included with this unit are TWO rechargeable ML1665R from nitecore. There is a built in USB Mini charge port with these batteries. This unit will not work with standard non-rechargeable CR123 batteries. Most CR123 batteries are 3V and are not adequate for use in the MH25. The included rechargeable batteries are 3.6V each. We only recommend using the included batteries or running a USB power pack that is no more than 5V.

4.) What is included with the MH25V2? 

The MH25 includes the following items:  one fabric carry case, two rechargeable batteries, USB C cord w/ 90 degree plug for battery pack use, & USB Mini for battery charging.

5.) How much better is 640 vs 320 or 384 core?  

We typically only recommend 640×480 cores for dedicated/hardcore users. The image clarity and quality is substantially better than a 320 or 384 core. With that being said, if your budget doesn’t allow the price tag of a 640 core, lower resolution may be the only option. You can get a lot of work done with lower resolution, but when it comes to helmet mounting, 640×480 is the way we tend to prefer. One optic to consider if the V2 is out of budget is the ML19. The ML19 is a SOLID contender in the 384 world. You can find that HERE.

6.) What about a warranty?

Contact iRay after purchase to register for their warranty. The MH25V2 features a 5 year manufacturers warranty.

7.) Is a helmet mount included in the price above? 

No. You will need to purchase a helmet mount separately. You can mount a mod armory dovetail adapter to your unit, then mount the unit into any mil spec dovetail mount, like the G24.

8.) Can the MH25 be run on the Panobridge or Mod Armory Bridge along with a PVS14? 

Yes. You will need to purchase the panobridge or mod armory bridge separately. The PVS14 is also sold separately. A HUGE benefit of the V2 vs the V1 is the fact that you no longer need a PVS14 eyepiece to run this unit effectively helmet mounted. Now you can put that money towards time behind the unit training.

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A note about our current lead times:

Arkayne is a RAPIDLY growing brand. Because of that, some of our suppliers have a hard time keeping up. There are occasions where WE experience lead times from our partners, and we do our absolute best to post the lead times at the top of our product pages. BEFORE PURCHASING: look at the lead time on the product pages. If you have ANY questions regarding lead times,  Email: and we will send you our closest ETA. We know you are pumped to get your gear, and we will process your order as fast as possible. We aren’t Amazon, we are a small US owned business that gives a rip about getting you equipped. We will get you your gear ASAP. See you in the darkness.