GUIDE THERMAL MONOCULAR TD435LS APEX VISION LRF 400X300

The Guide TD435LS is a thermal monocular with a built-in laser rangefinder, from the APEX VISION TD LRF 3.0 series. It sees the animal by its heat and measures how far away it is, up to 1200 m, in the same device. It has a 400×300 pixel sensor with 15 mK NETD, a 35 mm lens and weighs 374 g.

Features

• 1200 m (1300 yards) laser rangefinder built into a compact body: no need for a second device to know the distance.
• 400×300 sensor at 12 µm with 15 mK NETD and ApexVision S1 architecture (ApexCore S1, Nexus 1.0, Hyper-Light 2.0).
• Detection up to 1800 m with a 35 mm F1.0 objective lens and a 7.9° × 5.9° field (14 × 10 m at 100 m).
• 3.26x to 13.04x magnification, the highest base magnification among the 35 mm models.
• 0.49-inch AMOLED display at 1440×1080 and 7 colour palettes.
• Focus selector and symmetrical body: focus, range and record with one hand, from either side.
• Up to 10 hours with a replaceable 18650 battery, easy to change in the dark; two come in the box.
• Photo and video with sound in internal memory, 2.4 and 5 GHz Wi-Fi and TargetIR app with OTA updates.

Why choose this model?

The TD435LS combines thermal imaging and distance measurement in a single 374 g device. For those hunting from a stand or on foot, knowing whether the animal is at 80 or 180 m changes the decision, and here the measurement is taken without taking your eye from the eyepiece.

It weighs only 19 g more than the TD435S without a rangefinder. Anyone who needs more detail in the image has the TD635LS, with a 640×512 sensor, the same body and the same weight.

Technical specifications

In the box

• TD435LS thermal monocular with rubber eyecup
• Hand strap and neck strap
• Carry pouch and accessory pouch
• Lint-free cleaning cloth
• Battery charger and 2 × 18650 batteries
• 5V 2A adapter with US, UK, Australian and European plugs
• USB-A to USB-C cable
• Quick start guide

How to choose

In the TD LRF 3.0 series every model ranges up to 1200 m; the choice is about the image. The TD435LS (400×300, 35 mm) is the entry model and the one with the highest base magnification (3.26x). The TD635LS has the same size and weight with a 640×512 sensor and a wider field. The TD650LS, with a 50 mm lens, detects up to 2600 m and weighs 465 g.

Frequently asked questions

How far does the TD435LS rangefinder measure?
Up to 1200 m (1300 yards), according to Guide.

What is the difference between the TD435LS and the TD435S?
They have the same sensor, lens and detection range. The TD435LS adds the laser rangefinder and weighs 374 g instead of 355 g.

How far does it detect heat?
Guide states a detection range of 1800 m (1950 yards) with the 35 mm lens.

What battery does it use?
A replaceable 18650 battery, with up to 10 hours of operation. The box includes two batteries and a charger.

Is it water-resistant?
Yes, it has IP67 protection against water and dust and operates from −20 °C to 50 °C.

Can it be mounted on a rifle?
No. The TD435LS is a handheld observation monocular, not a riflescope, and is not mounted on a gun.