ATN OTS-HD 384 Thermal Smart HD Monocular Review

Written By Annalena Wood is reader supported. When you buy through links on our site, we may earn an affiliate commission at no cost to you.

The ATN OTS HD series provides high quality and user-friendly thermal imaging solutions for the users. There are multiple models available in the OTS 384 line, but this OTS-HD 384 2-8x is one of the best of them.

Are you a hunter and looking for the best monocular? Then you can choose this ATN OTS-HD 384 Thermal Smart HD Monocular. It helps to enhance your hunting experience and it will give the high definition view of your target.

When compared to other ATN models, OTS-HD 384 comes with a reasonable price, it offers great features and helps the shooters for better target acquisition. It’s an excellent gear for a beginner in the hunting world.

ATN OTS-HD 384 Thermal Smart HD Monocular

The ATN OTS-HD thermal monocular comes with a 384*288 thermal sensor, a 25 mm objective lens, and 2 – 8 X zoom magnification. It comes with 1.5 pounds of weight. It has a 3D accelerometer, 3D magnetometer, and 3D gyroscope.

ATN OTS-HD Thermal Monocular

Arctic Silver 5 Thermal Paste


  • Sensor: 384*288
  • Eye relief: 65 mm
  • WiFi control: Android & IOS
  • Mode: Day and Night mode
  • Core processor: ATN Obsidian II
  • Objective lens diameter: 25 mm


It is built with a gyroscope, which helps to eliminates the jittery pictures and maintain better stabilization with the ground. This feature is a great advantage for using monocular in many fields. You will get a clearer image even if you’re breathing hard or shivering from the cold. It is the ideal choice for outdoor winter use.


The ATN OTS-HD 384 monocular is attached to e-compass, which stands for the electronic compass. By using the magnetometer sensor, it delivers exact adjustment to the user. It also helps to find the area even if you don’t have any guess about it. 

Smart Rangefinder

It is built with a smart rangefinder that measures the distance from your target exactly. You will be able to range your target with two clicks and a simple shift of the scope. It will automatically adjust its point, once it is ranged in your reticle.

Obsidian II Core processor

It comes with the OTS-HD Obsidian core processor, which delivers fast performance and records the whole task. The speed of this processor is 1 GHz, and this processor can manage Wi-Fi/Bluetooth connectivity, a micro-display, and a thermal image sensor. 

Video Capacity and Image Quality

It is a video streaming and video recording capable thermal monocular. You can take a great picture and record your hunting videos. This monocular can capture up to 1280*960 pixel images and able to record a 60 Hz high-definition video.

The captured videos and images are automatically stored in the internal microSD card. You can quickly transfer these images and videos to your personnel computer or mobile phones.


You will get 384*288 pixel HD resolution along with this ATN OTS-HD thermal imaging monocular. Through this high definition resolution, you can see the clear images even in the darkest situation.

The detection range of this monocular is 800 mm; the recognition range is up to 400 mm, while the identification range is 250 mm.


ATN OTS-HD 384 is also constructed with advanced connectivity such as Bluetooth, and wifi, so the other users can log in, see your microdisplay in real-time and share the experience with you.

By using the ATN Obsidian app, you can connect the device into your mobile phone and tablet. So you can control your device by using your phone when you are on a long-distance. 

The notable feature of this monocular is GPS antenna, which allows you to Geotag your images and videos so that you can see the picture’s location. Another noteworthy feature is a smart rangefinder, which is used to find the distance of objects. 


This thermal monocular is powered by 4 AA types, 1.5 V lithium-ion batteries. With this battery, you will get 8 hours of continuous performance for your hunting.

E-Zoom capacity

By using this ATN OTS-HD 38 Thermal Smart HD monocular you will get an extraordinary zooming capability. Without any distraction, you can see the clarity of your target, even at a longer distance, and it will be an excellent feature for all the users in many situations.


It is made of black aluminum material, which is very durable and waterproof. You can use this thermal monocular at any weather conditions. You will get a crystal clear view of your target even in the rain, fog, etc. 

The one issue that we’ve found in this monocular is its menu settings, buttons, and features. It is slightly difficult to learn. If you have the patience to learn the settings, then you will get an enjoyable hunting experience.


  • Long battery life
  • Perfect zoom magnification
  • Wifi compatible with iOS and android


  • Slightly hard to learn all controls of the device

Specific Features of ATN OTS HD

We all know about the tremendous benefits of ATN’s OTS HD series of thermal monocular provide the user with the well-adaptable and high-quality thermal vision.


It detects the target with the power of thermal and precisely takes the shot with confidence with the help of smart shooting options. With just a press of a button, you can record everything and share it among your friends and family.


It is built with the most cutting-edge technologies like the OTS-HD obsidian core, an integral computer and offers the fastest and powerful processor. It has the capacity to boast lightning-fast speed as well as lag-free performance. Speed and high-resolution can be accessed with just a click of a button.


Smart Range Finder will make your life absolutely easier than ever. With just two clicks and a simple shift of the scope, you can precisely shoot your target. Once ranged in your reticle it will automatically adjust its point of impact.


It’s possible to record videos and capture photos to bring your adventures back home to share with friends, family and on social media.


It helps to capture and share your videos with your friends and family back home and online.


It doesn’t work like many traditional optics, because the silky smooth zoom helps you get up close and personal with everything you’re looking at.


Most of the professional designers have worked for a long time and introduced the user-friendly and intuitive experience for the customers. You’ll be impressed by the ease of use and features.


By utilizing the ATN Obsidian app, the user can control the device and view live streaming. Just Connect a phone or tablet and view everything simultaneously. DO you want to see what you’ve recorded so far? No worries, once connected to the app via WiFi, open up the Gallery and playback your latest adventures. All your photos and videos are right at your fingertips.

Product Features of ATN OTS HD 384

Record HD Video

This specific feature allows you to capture all your memorable experiences and enjoy high-resolution images. Use an SD card to record your adventures without any additional USB cables, don’t miss a chance to capture your moment.
Wifi Module

Wifi module allows you to connect a phone/tablet and view everything at the same time, with this you can see what you’ve recorded so far.Just share all your memorable moments with the person next to you and watch in real-time.
Smooth Zoom

ATN Smooth Zoom technology allows you delicate ultra-slow zooming. Stay where you are and zoom in with a press of a button, and you’ll get up close and personal with everything you are looking at.

Wrapping Up

Overall, ATN OTS-HD 38 is the best thermal monocular for the money. It can be used in many types of applications, and it is a perfect choice for all users. If you’re an entry-level hunter, then it is one of the best smart thermal monocular on the market. 

With the ATN OTS-HD, you can hunt at all weather conditions, and it is designed to withstand rain, fog, etc. It is the best budget-pick model yet a high quality thermal monocular. Enhance your hunting experience by investing in this thermal monocular.

About Annalena Wood

Annalena is carrying her rifle with passion and pride for her love of the outdoors and the experience of hunting. Her most memorable hunting season was back in 2015 when she and her dad were drawn for special elk tags. That allowed them the chance to fill their tags with an actual bull elk rather than a spike. That year both her and her dad came home with their first trophy elks, with hers a 6 by 6 pointer and her dad’s a 6 by 5.