Guide TD 653L Thermal Monocular with LRF

The Guide TD653L, also known as the TD653 LRF, is a 50 mm model in Guide's TD Gen3 LRF series of handheld monoculars. It puts a 640 × 512, 12 μm sensor rated ≤20 mK behind a 50 mm F1.0 lens, with a laser rangefinder rated to 1,000 m (1,090 yd), in a 472 g body that runs a rated 10 hours on one 18650. Next to Guide's Kodiak TK650L, it gives up the Kodiak's ≤15 mK rating, 1,200 m (1,300 yd) laser and 64 GB of storage for 10 hours of rated runtime against 5.5 and 121 g less weight; the Athlon Cronus ATS 35ML-400 matches its laser reach (1,100 yards against 1,090) and weighs less, on a 400 × 300 sensor rated ≤50 mK.

Key Features

• A laser rangefinder in the body. A short press of the Down button ranges the target. In single mode each press takes one reading; in continuous mode the readings keep coming until a long press stops them. The ranging cursor can be blue, white, green or orange, and distances read in meters or yards.
• 50 mm reach. The 50 mm F1.0 lens starts at 2.6x, and each pixel spans 0.24 mrad (12 μm ÷ 50 mm), about 2.4 cm at 100 m. Detection is rated at 2,600 m (2,800 yd), and the field of view is 8.8° × 6.6° (15 × 12 m at 100 m).
• Zoom. Short presses of the Up button step through 1x, 2x, 4x and 8x (2.6x to 20.8x), and a long press zooms smoothly in 0.1x steps. Picture-in-picture shows the center of the view magnified twice.
• Fingertip focus, either hand. Guide's focusing roller sets focus with a scroll of one finger, and the symmetrical housing and button layout let either hand run it one-handed.
• One 18650, either way round. A single replaceable 18650 runs the TD653L for a rated 10 hours, and it goes in without regard to its positive and negative ends, so you can change it in the dark. The monocular does not charge the cell itself: the 18650 charges in the battery charger in the box, and the USB-C port can run the monocular from the 5 V 2 A adapter that also comes with it.
• Image tools. Hot track marks the warmest point, three scene modes (Natural, Enhance, Highlight) work with seven palettes, and Guide's super-resolution algorithm reconstructs image detail with an AI learning model.
• Recording and the TargetIR app. Photos and video with sound go to 32 GB of built-in storage, and clips can be capped at 15 or 60 seconds. Dual-band Wi-Fi (2.4 and 5 GHz) streams the live image to the TargetIR app, which can also run the monocular and install firmware updates.
• Sealed for weather. Waterproof to IP67 and rated to operate from -4°F to 122°F.

Who It's For

• Hunters who find distance hard to judge in thermal. The rangefinder puts a measured distance on the same image you are scanning, with no second device to pick up.
• Open-country scanning before the shot. At 2.6x and 15 × 12 m of view at 100 m, the TD653L suits open fields and long edges: find and range the animal, then shoulder the rifle.
• Choosing between the 653L and the 633L. The TD 633L has the same sensor, ≤20 mK rating, 1,000 m (1,090 yd) rangefinder, 10-hour battery and 32 GB behind a 35 mm lens. It sees 12.5° × 10.0° (22 × 17 m at 100 m) from 1.8x and weighs 376 g against 472 g, while its detection is rated at 1,800 m against 2,600 m. Take the 653L for open ground and distance, the 633L for cover, close work and a lighter load.
• Choosing between Guide's 50 mm handhelds. The Kodiak TK650L adds a 1.03-inch, 2560 × 2560 AMOLED and a 4x base magnification to its ≤15 mK sensor and 1,200 m laser. The TD653L answers with 10 hours of rated runtime against 5.5 and 472 g against 593 g, and it costs less.
• Cross-shopping the Athlon. The Cronus ATS 35ML-400 is lighter (14.8 oz against 16.65), Athlon rates its laser to 1,100 yards and its detection to 3,000 yards against Guide's 2,800. The TD653L brings 2.7 times the pixels (640 × 512 against 400 × 300), a ≤20 mK rating against ≤50 mK, a 50 mm lens against 35 mm, and IP67 sealing against IP66.

Accessories & Compatibility

• Spares and remote. A spare 18650 battery and a Bluetooth remote control are optional accessories; the remote pairs once Bluetooth is switched on in the menu.
• Tripod. The body has a tripod socket for long looks over one spot.
• More options. Compare the Guide Sensmart thermal range or all our thermal monoculars.