ATN BlazeHunter 635 LRF
The ATN BlazeHunter 635 LRF is a 640×512, 12 µm thermal handheld monocular behind a 35 mm lens, with a built-in laser rangefinder. On the Johnson yardstick that is an estimated 729 m detection and 182 m recognition range for a standing person; ATN quotes 1,830 m detection (unspecified (2000 yd)). At 12.7 oz it is 5th-lightest of the 18 handhelds here, where the median is 18.1 oz.
- Approx. price
- ~$1,895
- Sensor
- 640×512 · 12 µm
- Lens
- 35 mm · 2.5×
- Est. detection
- 729 m · 797 yd
Walk-and-scan glassing from a jacket pocket
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Box claim vs. what the optics support
One pixel of this unit sees 0.343 mrad (12 µm ÷ 35 mm). Two pixels across a 0.5 m human is 0.5 ÷ (2 × 0.343) × 1000 = 729 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 atncorp.com (product page + compare API).
- Sensor
- 640×512
- Pixel pitch
- 12 µm
- NETD
- <18 mK
- Refresh rate
- 50 Hz
- Lens
- 35 mm
- Digital zoom
- up to 8×
- Field of view
- 12.4° horizontal
- Display
- 1440x1080 OLED
- Claimed detection
- 1,830 m
- Claim basis
- unspecified (2000 yd)
- Run time
- 14 h
- Battery type
- 18650
- Weight
- 12.7 oz
- Length
- 6″
- Records video
- Yes
- Wi-Fi
- Yes
- IP rating
- IP67
- Warranty
- 3 years
- Approx. price
- ~$1,895
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
- 0.343 mrad
- Est. detection
- 729 m
- Est. recognition
- 182 m
- Est. identification
- 112 m
- Claim ÷ estimate
- 2.5×
Features
- 640 sensor
- 12 µm
- 35 mm lens
- 50 Hz
- LRF
- Removable battery
- Records video
- Wi-Fi
- Under 20 oz
- IP67
- NETD ≤ 20 mK
- OLED 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.
- 640×512 core — 3.0× the pixels of a 384-class unit
- 12 µm pitch — the 35 mm lens sees what a 17 µm core would need 50 mm to match
- Published NETD of <18 mK, 8th-lowest of the 51 units here that publish one
- Built-in laser rangefinder
- Runs on 18650 cells you can swap in the field
- 14 h published run time, 1st-longest of 64 here
- IP67 sealed — survives immersion, not just rain
- NETD published only as a ceiling (<18 mK), not a measured figure
- Rangefinder but no ballistic calculator — the holdover is still yours to work out
Compare the LRF
Related units
Pulsar Axion 2 LRF XG35
- Sensor · lens
- 640×480 · 35 mm
- Pitch · refresh
- 12 µm · 50 Hz
- Est. detection
- 729 m
- Box claim
- 1,750 m
RIX Titan T6
- Sensor · lens
- 640×480 · 35 mm
- Pitch · refresh
- 12 µm · —
- Est. detection
- 729 m
- Box claim
- 1,820 m
Steiner Nighthunter H35 Gen II
- Sensor · lens
- 640×512 · 35 mm
- Pitch · refresh
- 12 µm · 50 Hz
- Est. detection
- 729 m
- Box claim
- not published