The Guide TD635LS is built for users who want long-range thermal observation without carrying a large or complicated device. Its combination of a 640x512 thermal sensor and 35mm objective lens delivers strong image detail across a wide range of conditions, while the integrated laser rangefinder provides accurate distance measurements out to 1200m (1312yd).

At the heart of the system is Guide's ApexVision platform, which combines advanced detector technology with image-processing algorithms designed to produce cleaner, sharper thermal imagery. The result is improved detail recognition, smooth motion rendering, and clearer target definition even when temperatures are similar.

Handling is straightforward. The compact body weighs just 374g (13.2oz), the focus roller can be adjusted with a finger while observing, and the ambidextrous layout feels natural in either hand. Long sessions are supported by a replaceable 18650 battery with up to 10 hours of runtime.

A thermal monocular is only as useful as the information it helps you see. With onboard recording, 32GB of storage, Bluetooth support, dual-band WiFi, and a high-resolution AMOLED display, the TD635LS is equipped for everything from quick checks to extended observation sessions in challenging conditions.

A strong choice when you want thermal performance, integrated ranging capability, and all-day portability in one compact unit.

Key Features

• ApexVision Imaging System: Combines ApexCore S1, Nexus 1.0, and Hyper-Light 2.0 technologies to deliver enhanced image clarity and detail.
• 640x512 Thermal Sensor: Produces crisp thermal imagery with a NETD rating below 15mK for improved target separation.
• Integrated Laser Rangefinder: Measures distances out to 1200m (1312yd) without adding bulk to the device.
• 35mm F1.0 Objective Lens: Balances field of view and detection capability for versatile observation.
• Ambidextrous Design: Symmetrical housing supports comfortable one-handed operation with either hand.
• Scroll Focus Control: Allows fast and precise manual focus adjustment using a fingertip roller.
• AMOLED Display: High-resolution 1440x1080 display provides vivid image presentation and comfortable viewing.
• Replaceable 18650 Battery: Delivers up to 10 hours of operation with simple blind installation in low-light conditions.
• Photo, Video and Audio Recording: Captures observations directly to internal storage for later review.
• Dual-Band WiFi Connectivity: Supports both 2.4GHz and 5GHz wireless connections for app integration and file transfer.