Infiray FH35R Finder Monocular


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 range finder makes the Finder the best choice for outdoor investigation.


  • Thermal rangefinder
  • 16GB built in memory
  • Sensor res – 384×288 12μm
  • 1298m detection range
  • 600m laser rangefinder
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Infiray FH35R Finder Monocular

High Image Quality

The Infiray FH35R Finder Monocular is equipped with 12μm 640×512 pixel pitch high-resolution sensors featuring NETD ≤35mk and uses a 1024×768 resolution OLED display. Coupled with the optimized image algorithm, it creates stunning clear imaging.

Clear Imaging

Dual-Hue Mode

For a better visual experience, Finder II supports switching between cold and warm image hues. With the cold hue setting, users experience visually clearer imaging quality with rich details and highlight targets. The warm hue setting generates softer imaging to avoid visual fatigue brought by extended usage.

Dual Hue Mode

Integrated Laser Rangefinder (LRF) up to 800m

The Finder II Series has a built-in laser ranging module, which provides both single ranging and continuous ranging,helping to capture target distance accurately. With an accuracy of ± 1m within 800m, accurate evaluation of distance and terrain is quick and easy.

Integrated LRF

Long Detection Range 1818 m

The 35mm objective lens in combination with advanced thermal imaging hardware provides exceptional detection. The FL35R & FH35R can boast detection ranges of up to 1818 meters in complete darkness.

Infiray FH35R Finder Monocular Range

Replaceable Battery Pack

The battery can be quickly removed and replaced with new ones in a matter of seconds. With a replaceable Li-ion battery pack, you can enjoy up to 6 hours battery life. Carrying an additional battery pack as standard can extend battery life up to 12 hours.

Replaceable Battery Pack

Photo/video Recorder, Built-in 32GB Storage Capacity

The Finder II Series is equipped with 32GB of digital storage video and photos. Saved video and photo files can be transferred to a computer via wired connection or to a phone via WiFi.

Feature Icons

WiFi Connection & App Supported

The Finder II Series and the InfiRay Outdoor app operate hand-in-hand, easily handling frame sync and data output. The app offers additional features such as access to the online InfiRay community and after sales support.

Infiray FH35R Finder Monocular Wifi

Infiray FH35R Finder Monocular – Specs

Resolution, pixels640×512
Pixel pitch, μm12
Sensor NETD, mK35
Frame refresh rate, Hz50
Objective LensF35/1.0
Field of view (H x V), degrees12.6×10.1
Optical magnification, x2-8
Digital zoom, x1x,2x,3x,4x
Display TypeOLED 1024×768
Battery typeLi-ion battery pack, replaceable
Max. battery life (t=25℃) ★, h6
Laser rangefinder range, m800±1
Built-in memory, GB32
Detection Range, m
(Target size:1.7m×0.5m, P(n)=99%)
Dimension, mm160x90x50
Weight, g400
Operation temperature,°C-20~+40

★Actual operation time depends on the intensity of Wi-Fi use and the built-in video recorder.

Get the manual here