All units
iRayUSA · RICO Micro V2 RH25
Estimated range, standing human, clear air
iRayUSA RICO Micro V2 RH25640×480 · 12 µm · 25 mm
80 m identify130 m recognize521 m detectbox says 1,260 m (unspecified)
501002005001k2k5k m
Estimated from pixel pitch and lens focal length using the Johnson criteria (2, 8 and 13 pixels across a 0.5 m human critical dimension), clear air, 50 % probability. A model of the optics, not a measurement — real range depends on temperature contrast, humidity and the animal.
iRayUSA

iRayUSA RICO Micro V2 RH25

Riflescope640-class

The iRayUSA RICO Micro V2 RH25 is a 640×480, 12 µm thermal riflescope behind a 25 mm lens. On the Johnson yardstick that is an estimated 521 m detection and 130 m recognition range for a standing person; iRayUSA quotes 1,260 m detection. It is the lightest of the 36 riflescopes here, at 11.3 oz.

Approx. price
~$3,999
Sensor
640×480 · 12 µm
Lens
25 mm · 1×
Est. detection
521 m · 570 yd
Best for

A dedicated night rifle for hogs and coyotes inside about 150 yards

Buy from iRayUSA

We may earn a commission. Price and availability on iRayUSA’s site may differ.

Box claim vs. what the optics support

Manufacturer says
1,260 m
detection, unspecified
Johnson estimate
521 m
detect · 130 m recognize · 80 m identify
Claim ÷ estimate
2.4×
how much further the box reaches than a 2-pixel, 0.5 m criterion

One pixel of this unit sees 0.480 mrad (12 µm ÷ 25 mm). Two pixels across a 0.5 m human is 0.5 ÷ (2 × 0.480) × 1000 = 521 m. The box figure is usually computed against a person’s 1.8 m height instead, which is why it comes out higher. Full explanation.

Specifications

Manufacturer-published figures, cross-checked against irayusa.com.

Sensor
640×480
NETD
<15 mK
Lens
25 mm
Digital zoom
up to 4×
Field of view
17.5° horizontal
Display
1440x1080 AMOLED
Claim basis
unspecified
Weight
11.3 oz
Length
4.5″
Records video
Yes
Wi-Fi
Yes
Warranty
5 years
Country of origin
China
Approx. price
~$3,999

Derived here

Estimated from pixel pitch and lens focal length using the Johnson criteria (2, 8 and 13 pixels across a 0.5 m human critical dimension), clear air, 50 % probability. A model of the optics, not a measurement — real range depends on temperature contrast, humidity and the animal.

IFOV
0.480 mrad

Features

  • 640 sensor
  • 12 µm
  • 25 mm lens
  • 60 Hz
  • Removable battery
  • Records video
  • Wi-Fi
  • Under 20 oz
  • IP67
  • NETD ≤ 20 mK
  • AMOLED display

What the spec sheet says

Read from the published specifications and this catalog’s own numbers — not from owner reports, which we have not collected for this unit.

For it
  • 640×480 core — 2.8× the pixels of a 384-class unit
  • 12 µm pitch — the 25 mm lens sees what a 17 µm core would need 35 mm to match
  • Published NETD of <15 mK, 1st-lowest of the 51 units here that publish one
  • 60 Hz core — 20 % more frames than the 50 Hz norm when an animal runs
  • Runs on 18650 cells you can swap in the field
  • 11.3 oz — 1st-lightest of the 36 riflescopes here
  • IP67 sealed — survives immersion, not just rain
Against it
  • No rangefinder — judging distance through a thermal is the hard part
  • Estimated recognition only 130 m — inside typical shooting distance
  • NETD published only as a ceiling (<15 mK), not a measured figure
  • 4× top end is digital — everything past 1× is interpolated pixels

Compare the RH25

ATN · ThOR 5 LRF 640 2-16x
ATN

ATN ThOR 5 LRF 640 2-16x

Sensor · lens
640×480 · 25 mm
Pitch · refresh
12 µm · 60 Hz
Est. detection
521 m
Box claim
2,470 m
RiflescopeLRF60 Hz
34.2 oz~$2,995
iRayUSA · Bolt TH50C V2
iRayUSA

iRayUSA Bolt TH50C V2

Sensor · lens
640×512 · 50 mm
Pitch · refresh
12 µm · 50 Hz
Est. detection
1,042 m
Box claim
2,190 m
Riflescope
33.2 oz~$5,499
iRayUSA · RICO Hybrid Compact HCH50R
iRayUSA

iRayUSA RICO Hybrid Compact HCH50R

Sensor · lens
640×480 · 50 mm
Pitch · refresh
10 µm · 60 Hz
Est. detection
1,250 m
Box claim
2,800 m
RiflescopeLRF60 Hz
25.6 oz~$5,299