The Guide Thermal Monocular TD 633L 640x512 brings serious thermal performance into a compact, one-handed package. Built around a 640×512 @ 12 μm uncooled VOx detector with a crisp 0.36" AMOLED display, it delivers detailed thermal images, smooth 50 Hz refresh, and a generous 2–16x magnification range. The integrated 35 mm F1.0 objective lens and manual focus give you a detection range out to roughly 1,950 yards, while the onboard laser rangefinder reads distance to targets out to about 1,090 yards.

This TD Gen 3 handheld is designed for long nights in the field, with up to 10 hours of runtime from a single replaceable 18650 battery and an ambidextrous, textured housing that feels secure in either hand. Built-in Wi-Fi, Bluetooth, microphone, and 32 GB of internal memory support photo and video recording with audio, making it a strong fit for hunting, wildlife observation, and general nighttime scouting. Rugged IP67 construction and a wide operating temperature range reflect Guide’s focus on dependable, field-ready optics.

Key Features:

• Manufacturer: Guide
• Model: TD 633L
• Sensor Type: Uncooled VOx Infrared Detector
• Sensor Resolution: 640×512 @ 12 μm
• Refresh Rate: 50 Hz
• Objective Lens: 35 mm F1.0
• Optical Magnification: 2.0x–16x
• Digital Zoom: 8x
• Detection Range: 1,800 m / 1,950 yd
• Laser Rangefinder: 1,000 m / 1,090 yd
• Display Type: 0.36" AMOLED 1280×960
• Color Palettes: White Hot, Black Hot, Red Hot, Green Hot, Iron Red, Blue Hot, Sepia
• Eye Relief: 20 mm
• Diopter Adjustment: −6 to +6
• Recording Function: Photo / Video With Audio
• Internal Memory: 32 GB
• Connectivity: Wi-Fi 2.4G / 5G, Bluetooth, USB-C
• Ingress Protection Rating: IP67
• Operating Time: Up To 10 Hours (Single 18650 Battery)
• Weight: 376 g / 13.26 oz
• Dimensions: 159 × 54 × 74 mm