← 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┆ maker’s claim
501002005001k2k5k m
ATN quotes 490 m, 1.2× our figure, because makers usually measure against a person’s full height rather than their width. Why the numbers differ
ATNHandheld monocular · 320-class
ATN OTS LT 320 2-4x
- Approx. price
- ~$1,299
- Sensor
- 320×240 · 12 µm
- Lens
- 19 mm · 2×
- Weight
- 19.8 oz
Buy from ATN
Price and availability on ATN’s site may differ.
Best for
Scanning from a stand, a truck or a field edge
01Specifications
As published by ATN. Sources: atncorp.com (product page, compare API; lens: OTS LT manual + ATN 2022 catalog).
- Sensor
- 320×240
- Pixel pitch
- 12 µm
- Refresh rate
- 60 Hz
- Lens
- 19 mm
- Digital zoom
- up to 4×
- Field of view
- 11.4° horizontal
- Display
- 1280x960
- Claimed detection
- 490 m
- Claim basis
- human-sized target (ATN product page 535 yd; ATN manual labels it 'Human Detection Range')
- Run time
- 9 h
- Battery type
- Internal Li-ion
- Weight
- 19.8 oz
- Length
- 7.7″
- Records video
- No
- Wi-Fi
- No
- Warranty
- 3 years
- Country of origin
- USA
- Approx. price
- ~$1,299
02Pros and cons
From the published specs, not owner reports.
For it
- Smooth 60 Hz picture on a running animal
- 9 h of battery, 81st-longest of 344 here
- ~$1,299, well under the ~$1,995 typical for handhelds here
Against it
- Sensitivity (NETD) not published
- Built-in battery, so no swapping in the field
- Heavy at 19.8 oz, 23rd-heaviest of the 112 handhelds here
- No rangefinder, so you judge distance by eye
- Does not record video
- Entry-level 320×240 sensor, with less detail than a 640
03Compare the 2-4x
04Related units
ATNHandheld monocular
ATN ODIN LT 320 2-4x
Est. detection
396 m
Maker’s claim
490 m
- Sensor
- 320×240
- Pitch · Hz
- 12 µm · 60
- Lens
- 19 mm
60 Hz · 10.1 oz~$1,299
ATNHandheld monocular
ATN ODIN LT 320 3-6x
Est. detection
521 m
Maker’s claim
830 m
- Sensor
- 320×240
- Pitch · Hz
- 12 µm · 60
- Lens
- 25 mm
60 Hz · 10.1 oz~$1,499
ATN · OTS LT 320 3-6x
ATNHandheld monocular
ATN OTS LT 320 3-6x
Est. detection
521 m
Maker’s claim
830 m
- Sensor
- 320×240
- Pitch · Hz
- 12 µm · 60
- Lens
- 25 mm
60 Hz · 19.8 oz~$1,499