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InfiRay FH35R Finder 3.4-13.6x35 12um <40mk 32GB 1298m Thermal Monocular InfiRay FH35R Finder 3.4-13.6x35 12um <40mk 32GB 1298m Thermal Monocular InfiRay FH35R Finder 3.4-13.6x35 12um <40mk 32GB 1298m Thermal Monocular InfiRay FH35R Finder 3.4-13.6x35 12um <40mk 32GB 1298m Thermal Monocular InfiRay FH35R Finder 3.4-13.6x35 12um <40mk 32GB 1298m Thermal Monocular InfiRay FH35R Finder 3.4-13.6x35 12um <40mk 32GB 1298m Thermal Monocular InfiRay FH35R Finder 3.4-13.6x35 12um <40mk 32GB 1298m Thermal Monocular InfiRay 2020 Finder Series-Thermal Imaging Scope
InfiRay FH35R Finder 3.4-13.6x35 12um <40mk 32GB 1298m Thermal Monocular

InfiRay Iray FH35R Finder 640x512 12um <40mk Laser Rangefinder Thermal Monocular

Available soon Notify me when back in stock
  • Excellent value for money
  • 640x512 12um thermal sensor
  • 3.4x base magnification
  • 40mk 
  • Laser rangefinder 
  • 35mm focal length
Same Day Dispatch on in-stock items before 14:30pm
Product Information FIND OUT MORE

The Finder series products are light and easy to carry, especially suitable for one-handed operation that can be put in a pocket anytime and anywhere. The compact design and built-in laser rangefinder make the Finder the best choice for nighttime hunting, animal observation, or search and rescue.

Model FH35R
Resolution, pixels FH35R
Pixel size, um 12
Sensor NETD, MK 40
Frame refresh rate, Hz 50
Objective Lens F35/ 1.0
Field of view, degrees 12.6X10.1
Optical magnification, x 3.4 ~ 13.6
Digital zoom, x x1, x2, x3, x4
Display Type OLED,  1024 x 768
Battery type Li-ion battery pack, replaceable
Max. battery life (t=25℃) ★, h 6 5.5
Laser rangefinder range, m 800 ±/-1
Amount of built-in memory, GB 32
Dimension, mm 160x90x50
Weight(without replaceable battery), g 400
Detection Range, m (Target size:1.7m×0.5m, P(n)=99%) 1818

High Image Quality
The advanced image processing ability of the InfiRay detector,  which has high-performance electronics and optimized infrared optics, creates excellent image clarity and provides better detection and classification, both day and night.

12 µm Thermal Imaging Sensor
A powerful objective lens in combination with a 12 µm professional-grade thermal imaging sensor provides exceptional detection capabilities. A standard 1,7 m (5.58 ft) tall object can be detected at a 1300 m (1420 yds) distance in complete darkness.

Long Detection Range 1298 m
The powerful objective lens combined with a 12 μm professional-grade thermal imaging sensor provides exceptional detection capabilities.

High Image Frequency 50 Hz
The 50 Hz refresh rate guarantees that you will capture every moment that you are interested in.

HD Micro-Display
1280×960 high-resolution internal display offers sharp images and vivid colors.

Integrated Laser Rangefinder (LRF) 600m
The Finder series has a built-in laser ranging module, which helps to quickly and accurately capture and display the target distance. The ranging accuracy is ± 1 m and the maximum ranging distance is 600 m. Integrated, precision laser rangefinder provides accurate rangefinding, it provides both single ranging and continuous ranging modes. Continuous ranging can be quickly activated to adapt to the constantly changing distance of the observed object. 

Pocket Machine
The compact size and light weight make it easy to carry and operate with one hand. It can be put into your pocket anytime and anywhere. The Finder weighs only 320 g,which is lighter than conventional rangefinders, but much more powerful.  The compact size of the thermal imager makes it an optimal portable unit for scouting and spotting.

Infrared Sensor Switch
By sensing the reflection, the infrared sensor switch controls the display on and off automatically which saves power and extends the device's operation time. 

Built-in Video Recorder and  WiFi Connection
With built-in storage space, the Finder series can save the best moments of your time in the field in the form of photos or videos for sharing with colleagues, friends, and family. 

App Supported
Built-in Wi-Fi module provides connectivity of Finder with Android or iOS smartphones or tablets. The smartphone and thermal imager combination offer a set of unique features such as direct image streaming, downloading and sharing recorded files, and firmware.

Built-in Accelerometer and  Digital Compass
Built-in accelerometer and digital compass improve accuracy by precisely identifying cant and angles.

Our aim is to ensure that your order arrives with you as soon as possible and in the safest, most cost-effective means. 

Please Note: Shipping charges may be subject to additional surcharges if out of area or over weight restrictions.



We use DPD , RoyalMail, TNT  and UPS courier services for all our orders whether dispatching to the UK or International. As soon as your order has been dispatched you will receive an email with your unique tracking number.


These are items that we have in-stock and will be sent out for delivery within 1-2 working days. If you would like to purchase the item in person then please call ahead to arrange an appointment: 01803 611 895.


These are usually items that are going to be out-of-stock for a number of weeks or are in short supply. By purchasing a Pre-Order Item you are in effect paying a deposit for your goods. As soon as the item is back in stock yours will be dispatched within 24 hours where possible. Please see individual product pages for current back-in-stock dates. In rare occasions, these dates can be changed by the manufacturers so we recommend staying in contact with Optics Warehouse depending on the product lead time.


In addition to the above information If your delivery address is outside of the UK you may be subject to import duties and taxes, which are levied once a shipment reaches your country. Any such additional charges for customs clearance must be borne by you. You should note that customs policies vary widely from country to country. Optics Warehouse advises each customer to contact their local customs office for further information if they are in any way unsure of local duties or liabilities. Cross border shipments are subject to opening and inspection by customs authorities which means some packages may be opened and re-sealed.


If you require any further assistance, please call us on 01803 611 895 or email



  • Please be advised that we have now introduced DPD Pins to all DPD orders from Optics Warehouse.
  • If your shipment is being sent from Optics Warehouse via DPD you will be sent a Pin Code that must be shown to the courier upon delivery.
  • The pincode is sent VIA email & TEXT message. A valid email address and mobile number must be provided at checkout.
  • Please note that if you do not display your pin code to the courier driver upon delivery, you will not be able to have your item and you may need to schedule another delivery date to show a valid pin.
  • Please view the attached slides HERE for further information!
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