Pulsar · Telos LRF XL50

Estimated range, standing human, clear air

IdentifyRecognizeDetectBox claim

Pulsar Telos LRF XL501024×768 · 12 µm · 50 mm

160 m identify260 m recognize1,042 m detectbox says 2,300 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.

Pulsar

Pulsar Telos LRF XL50

Handheld monocular1024-classLaser rangefinder

The Pulsar Telos LRF XL50 is a 1024×768, 12 µm thermal handheld monocular behind a 50 mm lens, with a built-in laser rangefinder. On the Johnson yardstick that is an estimated 1,042 m detection and 260 m recognition range for a standing person; Pulsar quotes 2,300 m detection. Its 1,042 m estimated detection range is the longest of the 19 handhelds here.

Approx. price: ~$4,700
Sensor: 1024×768 · 12 µm
Lens: 50 mm · 2.5×
Est. detection: 1,042 m · 1,140 yd

Best for

Scanning from a stand, a truck or a field edge

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Box claim vs. what the optics support

Manufacturer says

2,300 m

detection, unspecified

Johnson estimate

1,042 m

detect · 260 m recognize · 160 m identify

Claim ÷ estimate

2.2×

how much further the box reaches than a 2-pixel, 0.5 m criterion

One pixel of this unit sees 0.240 mrad (12 µm ÷ 50 mm). Two pixels across a 0.5 m human is 0.5 ÷ (2 × 0.240) × 1000 = 1,042 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 pulsarnv.com, outdoorlegacygear.com.

Sensor: 1024×768
Pixel pitch: 12 µm
NETD: <40 mK
Refresh rate: 50 Hz
Lens: 50 mm
Base magnification: 2.5×
Digital zoom: up to 8×
Field of view: 14° horizontal
Display: 1024x768 AMOLED
Claimed detection: 2,300 m
Claim basis: unspecified
Run time: 7 h
Battery type: Removable pack
Weight: 25.4 oz
Length: 9.6″
Laser rangefinder: Yes
Ballistic calculator: No
Records video: Yes
Wi-Fi: Yes
IP rating: IPX7
Warranty: 3 years (5 with registration)
Approx. price: ~$4,700

Derived here

IFOV: 0.240 mrad
Est. detection: 1,042 m
Est. recognition: 260 m
Est. identification: 160 m
Claim ÷ estimate: 2.2×
Derived field of view: 14°
Pixels per degree: 73.1

Features

1024 sensor
12 µm
50 mm lens
50 Hz
LRF
Removable battery
Records video
Wi-Fi
IPX7
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

1024-class core — 2.4× the pixels of a 640×512
12 µm pitch — the 50 mm lens sees what a 17 µm core would need 71 mm to match
Built-in laser rangefinder
Removable battery pack — a spare in the pocket doubles the run time
IPX7 sealed — survives immersion, not just rain
Records video and streams to a phone over Wi-Fi
Detection claim is only 2.2× our estimate — one of the more conservative box figures here

Against it

25.4 oz — 2nd-heaviest of the 18 handhelds here
NETD published only as a ceiling (<40 mK), not a measured figure
Rangefinder but no ballistic calculator — the holdover is still yours to work out
~$4,700 against a ~$3,000 median for handhelds here
25.4 oz, above the 18.1 oz median for handhelds here