Resident Evil 4 Remake Thermal Scope Location & Guide

In this guide learn where you can find the Thermal Scope, what are its uses and which weapons can you attach it to.

Thermal Scope Resident Evil 4 Remake
Image Credits: VeryAli Gaming

Resident Evil 4 Remake has many attachments, some of which are unique to each weapon. Using these attachments gives you bonus stats and benefits you can observe but not see. But in the case of the thermal Scope, you will immediately notice the difference. In this Guide, we will discuss where you can find the Thermal Scope and all its different Uses and Compatibility in Resident Evil 4 Remake.

Key Takeaways

  • The Thermal Scope can be found in Chapter 13 of Resident Evil 4 Remake.
  • You will find the Scope In a room attached to the Incubation Lab.
  • Through the use of Biosensor Scope, you can quickly Kill the Regenerators.
  • The Scope is Attachable to Four Guns.
  • The Enemies are Seen in a Bright Yellowish Color Through the Scope.
  • Attach the Scope to the gun in Inventory by Clicking on the Weapon, Clicking on the Equipped parts, and Selecting the Biosensor Scope.

Thermal Scope Overview

Biosensor scope Resident Evil 4 Remake
Biosensor/Thermal Scope description | Image Credits: VeryAli Gaming

The Thermal Scope, also known as the biosensor scope, is found in Chapter 13 of the game—the scope functions by showing you the heatwave map through the Scope attached to a gun. Through the Scope, you can easily spot enemies from afar as they show in Yellowish color that is vibrant and easy to spot.

Although it is just an attachment to a gun after chapter 13, where you find it, it becomes a vital part of your game. Without the Scope, you might struggle a lot to defeat certain enemies, and with it, it becomes much more manageable.

You will encounter the Scope simply by following through the main questline. However, to ensure you do not miss it or make it easier for you, we will show you where exactly you can find the thermal Scope in Resident Evil 4 Remake. After obtaining the biosensor scope, you can also sell to the merchant for 3,000 Pesetas, but be careful, as repurchasing it would cost you double the amount; of 6,000 Pesetas.

How To Get Thermal Scope?

In chapter 13 of Resident Evil 4 Remake, you will encounter the rooms locked by keycards and their levels. It would be best to solve the freezer puzzle to upgrade your keycard to level 2. If you are stuck in the freezer puzzle, you can visit this Guide to learn how to solve it.

After you are done with the freezer and have upgraded your keycard to level 2, you must go to the incubation lab. Make sure to also grab the LE 5 SMG from the room in the freezer room as it is straightforward to miss out on. After you open the incubation lab, you must go inside a room with 4 Regenerators inside incubation cells.

Map location of biosensor scope
Thermal Scope Map Location | Image Credits: VeryAli Gaming

Now go to the room attached to the lab. You will find a note which describes how you can use the biosensor scope for your current main quest task. You will also find the biosensor Scope in a small suitcase beside it on the table.

biosensor scope
Suitcase where you find the Thermal/Biosensor scope | Image Credits: VeryAli Gaming

To complete the main quest, you would need the wrench tool using the biosensor scope to find the wrench inside one of the four generators. Kill it to obtain the wrench tool and upgrade your keycard to level 3. Which grants you access to the room Ashley is locked in.

Wrench Tool
Wrench Tool Located Inside Regenerador | Image Credits: VeryAli Gaming


The thermal Scope is an attachment that provides you with certain benefits in combat. While some are just bonuses, others are necessary to kill certain enemies. On the Island, certain areas are dark, and it’s harder to spot enemies. So you can use it to mark out enemies in the dark and get some good headshots.

The primary use of this scope can be driven by the time you get it in the game. After your first encounters with the regenerators, you will realize how challenging these enemies can be. In your first encounters, it will take countless bullets or some explosives to kill them. However, After obtaining the attachment, you will realize how easy it can become to take them out.

Regenerators are enemies capable of regenerating very quickly and are very hard to take out. But with the help of thermal Scope, you can mark out the three Plagas living inside its body. These Plagas can be seen through the Scope as bright yellow organisms residing inside the Regenerators whom you kill quickly by shooting at these Plagas.

Regeneradors / Regenerators
Plaga seen through thermal scope | Image Credits: VeryAli Gaming

Weapon Compatibility

The thermal Scope can be generally attached to any weapon that can use its scopes. These weapons include any rifle in the game except the LE 5 Submachine gun.

The list of the weapons compatible is:-

The SR M1903 is an early-game gun, so it is better not to use the biosensor scope. The CQBR Assault rifle and LE 5 SMG provide a reasonable fire rate, so you do not need to precisely aim at the vital points with this gun. However, due to its damage, the best weapon to use the biosensor scope will be the Stingray rifle.

If you have fully upgraded the Stingray, you can easily remove the Regenerators with three well-placed shots by spotting the plaga silhouettes inside their body.

You can open your briefcase and click on the gun to use the biosensor scope. Click the parts button and select the biosensor scope to attach it to the weapon.

Ending Remarks

If you do not have the thermal Scope, the main problem is to kill the Regenerators, which can quickly heal from any damage you give them. So it is necessary to have it to save your ammo and promptly take them out. Unless you plan to take them out by bombarding them with grenades, you will need a lot of resources. So it is better to obtain it while in the incubation lab.

If you enjoyed this Guide, check out these guides on Resident Evil 4 Remake as well:

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