
Author: Thomas
Thermal imaging expert
synopsis
- The Guide TD431 LRF in the test: What can the underdog do?
- The Guide TD431 LRF Test
- The scope of delivery of the Guide TD431 LRF
- The features of the Guide TD431 LRF in the test
- Technical details of the Guide TD431 LRF Tests
- Our conclusion on Guide TD431 LRF Test
- Photos from the precinct after Guide TD431 LRF Test
- Field of view calculator: simulation of the field of view width
- your contact
The Guide TD431 LRF in the test: What can the underdog do?
Pulsar, Liemke and Hikmicro – Brands that we all know. But today we have something very special for you in the test: the TD431 LRF from Guide. And although Guide with one of the largest manufacturer on the market and sells many devices, the majority of hunters do not have the brand directly on their radar. We are changing that today! You can already tell from the name of the handset: Here is a Laser Range Finder installed. You can find out what special features the device has, what you can expect from the delivery and what features the monocular has to offer in our Guide TD431 LRF Test.
The Guide TD431 LRF Test
The scope of delivery of the Guide TD431 LRF
As always, we start ours Guide TD431 LRF test with the What's in the BoxHere the first impression counts and it is convincing: The box and even the outer box are already very valuable and above all heavy. Here you can expect a lot of accessories, which amounts to the following:
- A manual (You will receive detailed operating instructions in German by email or via your customer account)
- A bag for the device
- A charger/charging cradle
- 18650 battery
- Extra eye rest
- Hand Strap
- power plug
- A USB cable with a C connector
- A USB cable with mini USB connector
At this point a A little note from our side: For the Guide TD431 LRF test we had a Received prototype of the device. In these cases, the scope of delivery may vary. For example, we only had one battery as an accessory, but we assume that Two batteries will be included in the regular delivery, as the charging cradle has space for two batteries. If not, that's not a problem either - more on that later.
The features of the Guide TD431 LRF in the test
Visually, the TD431 LRF is impressive in its full length – the Design is very dynamic and looks really stylish. It is compact and the weight of 440g with battery is also perfectly fine, considering that it is a small, handy device. The battery is nicely integrated into the side of the device, right next to the input for the USB-C connection. On the top of the device you will find four buttons. These are processed differently, so that there are also in the dark to avoid confusion In addition, each key is provided with a small pictogram which shows the key assignment again in a self-explanatory way - this is really good to use, as it saves you a bit of trial and error.
In addition, you have the opportunity to Eye pad can be replaced individually and adapt it to your own preferences. The fact that this was thought of is definitely not a given and deserves a plus point.
The Focusing on the lens is smooth, but you really have a wide "from-to" range here - it takes a while until you get the hang of handling it. The processing of the focus is really very good, though. Here you have a non-slip, deep rubber coating, which you don’t slip over – great! The Lens protection is well done at first glance. However, we have to see how the lid performs in sub-zero temperatures and real conditions. Because, as we already know from other devices, the colder it gets, the smoother the rubber coatings become and the grip is lost a little.
What is striking, however, is that although the quality of workmanship is very good, the case still does not feel as high quality as its big competitors Liemke or PulsarOf course, the Price in relation – this is at the Guide TD431 LRF really top.
Further important features, which we have for you in Guide TD431 LRF test found include the following:
- Laser range finder: You can find the laser rangefinder at the left side of the TDF431 LRF. It can be easily controlled using the keypad on top. In addition to the single measurement it also offers a Scan mode, which proved to be extremely helpful in practice. Overall, the laser rangefinder of the Guide TD431 LRF very Reliable, whether in single measurement or in scan mode. Distances of up to 600 m are covered!
- Intuitive operation: Despite the extensive instruction manual included in the delivery, we can say that the Operation of the Guide TD431 LRF is really very intuitive and simple. The thermal imaging device is largely self-explanatory and easy to find your way around. The main menu, for example, opens in the form of a simple bar through which you can navigate. The four buttons that we have already mentioned are also Double occupancyso you can easily switch between different functions.
- Battery changing system: The Guide TDF431 LRF is equipped with 18650 batteries and therefore has a Removable battery systemWe already know the batteries from other manufacturers and they have proven to be particularly enduring Even long, extensive hunting trips are really no problem. But the best thing is: With the batteries you are completely independent of the manufacturersThis means you can easily buy replacement batteries as needed in any store that sells batteries – great!
- Taking pictures via the app: It is a shame that there is no internal recording function. Here you have to Guide TD431 LRF first pair with your mobile phoneto take a picture. However, you should not forget that the main task of the thermal imaging device is still to detect heat sources. Additional functions are therefore a nice bonus, but not absolutely necessary.
Technical details of the Guide TD431 LRF Tests
The Guide TD431 LRF comes with a relatively high optical base magnification of 2,6 This gives you a relatively narrow field of view of 100 m at 13 m. The Feldjäger is due to the large basic magnification with the TDF431 LRF here really well positioned. In addition, it is sometimes easier to approach the pieces because they are shown larger. As a forest hunter, you have to try out how well you can cope: everything that is closer than 5 m is correspondingly more difficult to get into the field of view. If necessary, you have to move the device a little more. We see the area of responsibility of the thermal imaging device, however clearly in the distance – we would definitely leave it at home for stalking.
The technical details of the Guide TD431 LRF at a glance:
| The Guide TD431 LRF | |
| Sensor | 384 × 288 pixels VOx |
| Sensor pitch | 12 um |
| Display | 640 × 400 pixels |
| lens | 35 mm |
| basic magnification | 2,6 x |
| Field of view | 13 m / 100 m |
| detection distance | 1400 m |
| Battery life (at 25°С) | 10 hours per battery |
| recording | via TargetIR App |
| WiFi function | Ja |
Our conclusion on Guide TD431 LRF Test
If you often are out in the field, and a thermal imaging device with Laser rangefinder under 1500 € is looking, then you are with the Guide TD431 LRF is really the best advice. The heat signature is shown really cleanly and the laser rangefinder does what it promises.
You're still unsure whether that's the case Guide TD431 LRF the right Thermal Imager is for you? Our thermal imaging specialists will help you and advise you on this thermal imaging device and many more other products in our online shop. Just take it Contact Form to us and we Together we will find exactly the right device for you. Good Hunting!
Photos from the precinct Guide TD431 LRF Test
Here are recordings of the Guide TD431 LRF.
Simulate field of view width
Our “field of vision calculator” makes this clear Prepare the field of view at the respective distance. This simulation is intended to help you get a feel for how large the section you see through this thermal imaging camera is.
Tested product
Manufacturer info Guide Sensmart
Guide Sensmart is one of the world's leading manufacturers of thermal imaging devices. The products offered are specifically designed for hunting and wildlife observation. The latest technologies, such as high-resolution VOx sensors, detailed OLED displays, a wide range of software options, and much more, make these products stand out on the market.
For more information about all products offered, please visit the manufacturer's website Guide Sensmart in our shop!
The hunting friends Stephan & Marco will advise you!

Phone: 03491 - 43 26 68
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