Guide TU650 LRF 3.0 — 640×512 thermal riflescope

How far you can see a person

160 m make out detail260 m tell what it is1,042 m spot it┆ maker’s claim

501002005001k2k5k m

Calculated from the sensor's pixel pitch and the lens focal length, for clear air.

Guide quotes 2,600 m, 2.5× our figure, because makers usually measure against a person’s full height rather than their width. Why the numbers differ

GuideRiflescope · 640-class · Laser rangefinder

Guide TU650 LRF 3.0

Approx. price: ~$2,999
Sensor: 640×512 · 12 µm
Lens: 50 mm · 3.9×
Weight: 28.8 oz

Price and availability on Guide’s site may differ.

Best for

Night shooting where ranging matters — hogs and coyotes past 150 yards

01Specifications

As published by Guide. Sources: guideir-thermal.com, guideoutdoor.com (US spec table's 3.7-29.6x row duplicates the Pro's; page title, OpticsPlanet listing and the same-optics TN650L 2.0 say 3.9x, so max zoom left null).

Sensor: 640×512
Pixel pitch: 12 µm
NETD: 18 mK
Refresh rate: 50 Hz
Lens: 50 mm
Base magnification: 3.9×
Field of view: 8.2° horizontal
Display: 1920x1080 AMOLED
Claimed detection: 2,600 m
Claim basis: unspecified
Run time: 12 h
Battery type: Internal + removable
Weight: 28.8 oz
Length: 14.8″
Laser rangefinder: Yes
Ballistic calculator: No
Records video: Yes
Wi-Fi: Yes
IP rating: IP68
Warranty: 5 years (10 years on sensor)
Approx. price: ~$2,999

02Pros and cons

From the published specs, not owner reports.

For it

640×512 sensor, 3× the detail of an entry-level 384
Sensitive sensor that picks out small heat differences on humid or rainy nights (56th-best of 285 that publish it)
Built-in laser rangefinder
Swappable battery pack, so a spare doubles the run time
12 h of battery, 8th-longest of 344 here
Waterproof (IP68), survives a dunking
Records video and connects to a phone app

Against it