How far can it detect an animal at night?

AGM rates thermal detection at up to 1,312 yards on a 6-foot subject. Recognition and identification come at shorter distances, so expect to close in before judging a trophy.

Does the rangefinder work day and night?

Yes. The laser rangefinder is rated to 1,093 yards with 1-yard accuracy and works alongside either the thermal or the digital channel.

Can I record what I see?

It captures photos and video to 64GB of internal memory and can stream or share over a built-in Wi-Fi hotspot.

What comes in the box?

The binocular, four 18650 batteries and a charger are included, so you have a spare pair to swap in.

How does it compare with a thermal monocular?

It adds a 4K low-light camera, an IR illuminator and a rangefinder, which a monocular usually lacks. The trade-off is more weight and two batteries to manage.

Is the digital channel usable in total darkness?

Only with the 850nm IR illuminator, which has adjustable power and beam angle and reaches beyond 400 yards. Without it, the CMOS camera needs some ambient light.

Where is the AGM ObservIR LRF 50-640 cheapest?

At Amazon, for $1,495.00, 67% under what the other stores charge, as of our latest check.

Where can I buy the AGM ObservIR LRF 50-640?

17 stores we checked sell it, including South Springs Optics, Amazon, Freedom USA Sales, Predator Hunter Outdoors, Bass Pro Shops.

AGM ObservIR LRF 50-640

Best price now

$1,495.00at AmazonChecked 6 h ago

67% under what the other stores charge

Compared across 17 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. As an Amazon Associate, Deal.ai earns from qualifying purchases.

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About the AGM ObservIR LRF 50-640

The AGM ObservIR LRF 50-640 is a pair of thermal and digital day/night binoculars with a built-in laser rangefinder. It combines a 640 x 512 thermal sensor with a 3840 x 2160 low-light CMOS sensor, so it shows both a heat-signature image and a low-light optical image. Both channels work day and night.

The thermal channel has a 50mm f/1.0 lens, 3-24x magnification and a 8.7 x 7° field of view. It offers black hot, white hot and red hot fusion palettes, and it can track the highest temperature spot. The digital channel has a 60mm f/2.2 lens, 5.5-22x magnification and a 6.9 x 4.1° field of view. A built-in 850nm IR illuminator has adjustable power and beam angle.

The laser rangefinder measures distance up to 1093 yards with 1-yard accuracy. The binoculars record video with sound and take photos, which are saved to 64GB of built-in memory or streamed and shared over built-in Wi-Fi. A 1920 x 1080 0.5" OLED display shows the image at 50 fps. The unit is dust- and waterproof to IP67.

Thermal sensor

640 x 512, under 15mK NETD

Thermal lens

50mm f/1.0

Thermal magnification

3-24x

Thermal field of view

8.7 x 7°

Detection range

1312 yards for a 6' subject

Thermal palettes

Black hot, white hot, red hot fusion