InfiRay Outdoor RH25 - Arkayne

InfiRay Outdoor RH25

Original price was: $5,999.00.Current price is: $5,499.00.

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

The RH25 is a major leap forward 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.

How is the RH25 different than the MH25?

The RH25 has a bit better resolution when compared to the MH25. A few other notable features are the 18650 battery pack and the ability to weapon mount this thermal. Battery life is longer than the MH25, which is a huge step forward. The biggest pitfall we saw personally when using our MH25’s was the battery life. Aside from that, the RH25 also features internal video and photo recording. There are other changes that are discussed in the specifications section on this page.

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 RH25 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 RH25 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.

  • Add a Pictail Adapter to Your RH25

    Add more capability to your unit by adding the pictail adapter here. 

    Add an MQD Mount to Your RH25

    You want maximum capability? Add the MQD here to gain it. 


What is the iRay RH25 Thermal Monocular?

The iRay RH25 thermal monocular is a micro 640×512 thermal monocular that is brand new to the market. iRay really packed in a ton of features with the RH25, and what you get is an extremely capable, high performance unit in a tiny package. Handheld, helmet mounted, or weapon mounted: the RH25 is ready to tackle it all.

Features of the RH25:

The RH25 is a tiny thermal packed with features. The 640×512 core ensures crystal clear identification of heat signatures. The light weight package means it is comfortable to use for extended periods of time, whether helmet mounted or handheld or weapon mounted. The RH25 is an extremely high performance mini thermal.

What Mount should I use for the iRay RH25?

We have several helmet mount options available for the RH25 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 Magnification

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

Various Modes Available

Mounting System

Multiple Attachment Methods



Onboard Recording?


Operation Time

4 Hours, 18650 Type


12.7 Ounces

Weather Resistance

IP67 Rated

Frequently Asked Questions:
1.) What is the battery life of the RH25 

The advertised battery life of the RH25 is 4 hours. This would be a large improvement over the MH25. As you might recall, the battery life of the MH25 was its biggest pitfall in our experiences. The RH25 uses 18650 batteries which are very common to find and purchase.

2.) What are proper batteries for the MH25? 

Included with this unit are (2) rechargeable 18650 batteries. Please note specifications on the included 18650 batteries. Any replacements purchased must meet the specifications of the batteries included from factory from iRay.

3.) What is included with the RH25? 

The RH25 includes (2) 18650 batteries, rail adapter, weapon mount, eye cup, chargers, and various cables for charging, data transfer, etc.

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

We typically only recommend 640×480 or better cores. 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 will say this: iRay has done a fantastic job with their 384 core thermal units. We have been blown away by the clarity. It won’t be as crisp as a 640×480 or 640×512, but it is definitely capable.

5.) What about a warranty?

Contact iRay after purchase to register for their warranty.

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

No. You will need to purchase a helmet mount separately. Please see our web page discussing the panobridge to learn more about how to mount an RH25 to your helmet.

7.) Can the RH25 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. You can find the panobridge HERE and the Mod Armory Bridge HERE. We typically have found better performance from the mod armory bridge when running with a PVS14. Please read all details on the mod armory bridge product page on our site as mounting thermal monoculars to a helmet can have some quirks and special considerations.


The RH25 is packaged by iRay and includes batteries, a charger, cables as well as a soft carry case. We will shoot a full video showing all of the components inside of the kit.

Please NOTE: The RH25 does NOT come with the dovetail/picatinny adapter OR rail adapter standard. Please make sure you select both options should you want to helmet and/or weapon mount your unit. We HIGHLY recommend buying both while purchasing your RH25 thermal monocular.

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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.