← All units
Calculated from the sensor's pixel pitch and the lens focal length, for clear air. 
How far you can see a person
61 m make out detail99 m tell what it is396 m spot it
501002005001k2k5k m
TrijiconHandheld monocular · 640-class
Trijicon IR-PATROL IRMO-100
- Approx. price
- ~$6,047
- Sensor
- 640×480 · 12 µm
- Lens
- 19 mm · 1×
- Weight
- 16 oz
Buy from Trijicon
Price and availability on Trijicon’s site may differ.
Best for
Scanning from a stand, a truck or a field edge
01Specifications
As published by Trijicon. Sources: trijicon.com (SKU IRMO-100, RETAIL $6,047; the 30 Hz 19 mm IR-PATROL; 1x CR123 ~2 h; 5.95 in; no onboard recording), trijicon.com warranty page.
- Sensor
- 640×480
- Pixel pitch
- 12 µm
- Refresh rate
- 30 Hz
- Lens
- 19 mm
- Digital zoom
- up to 8×
- Field of view
- 22° horizontal
- Run time
- 2 h
- Battery type
- CR123
- Weight
- 16 oz
- Length
- 6″
- Records video
- No
- Wi-Fi
- No
- Warranty
- 3 years (electronics; lifetime optics/housing)
- Approx. price
- ~$6,047
02Pros and cons
From the published specs, not owner reports.
For it
- 640×480 sensor, 2.8× the detail of an entry-level 384
- Takes CR123 batteries you can swap in the field
- Wide 23° view for scanning a field
Against it
- Sensitivity (NETD) not published
- Choppy 30 Hz picture on a running animal
- Only 2 h of battery
- No rangefinder, so you judge distance by eye
- Does not record video
- No waterproof rating published
03Compare the IRMO-100
04Related units
TrijiconHandheld monocular
Trijicon IR-PATROL IRMO-250
Est. detection
396 m
Maker’s claim
not published
- Sensor
- 640×480
- Pitch · Hz
- 12 µm · 60
- Lens
- 19 mm
60 Hz · 16 oz~$6,895
TrijiconHandheld monocular
Trijicon IR-PATROL IRMO-300
Est. detection
396 m
Maker’s claim
not published
- Sensor
- 640×480
- Pitch · Hz
- 12 µm · 60
- Lens
- 19 mm
60 Hz · 16 oz~$7,426
ArmasightHandheld monocular
Armasight Sidekick 640
Est. detection
396 m
Maker’s claim
709 m
- Sensor
- 640×480
- Pitch · Hz
- 12 µm · 60
- Lens
- 19 mm
60 Hz · 9 oz~$3,299