Fortnite: How to use the sensor backpack to record Zero Point energy signatures

The last few seasons of Fortnite had something the previous ones didn't: storyline quests. This way, players can accomplish tasks that serve two purposes. First, they get XP to advance the Battle Pass, which no one is ever unhappy about. Second, they get to learn about the plot, so there's less confusion about what's actually happening in Fortnite at any given point.

One of the challenges from the latest set of storyline quests is to use the sensor backpack to record Zero Point energy signatures. This harkens back to last season, when many of the tasks were to learn about the Zero Point.

Here's how to complete this Fortnite challenge and earn a little bit of seasonal XP.

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Use the sensor backpack to record Zero Point energy signatures - Fortnite Chapter 3 Season 4 storyline quest

Before you can start this task, there are other challenges you have to complete first. Here are the storyline quests that need to be completed prior to unlocking the one to record Zero Point energy signatures:

• Prepare for Jones' call on your next battle bus ride
• Position the Signal Boosters using your harvesting tools
• Await further orders (Enter a new match)
• Search an open dumpster to find the last of the Scientist's research notes
• Await further orders (Enter a new match)
• Talk to Agent Jones
• Find and enter the approval code at a research lab
• Await further orders (Enter a new match)
• Dance near Attunement Anchors
• Await further orders (Enter a new match)

Once those are done, you can begin working on this challenge.

Step 1: Head to this house

The first stop for this challenge (Image via Perfect Score on YouTube)

The first stop for this challenge is the small green house to the east of Fortnite's Tainted Towers, which is what Tilted Towers is called now thanks to the Chrome's invasion. Enter the basement, though you may want to loot up first.

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Step 2: Equip the sensor backpack

The sensor backpack (Image via Perfect Score on YouTube)

The sensor backpack can be found in the basement. Head all the way down the stairs and you will see the backpack glowing on the ground. Interact with it to equip it.

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Step 3: Head to Loot Lake and record

Find these glowing orbs (Image via Perfect Score on YouTube)

Head to Loot Lake. When you get close to the Zero Point energy signatures, the sensor backpack will begin beeping rapidly. These are glowing orbs found in and around the landmark.

To record them, you only need to touch them. They will also be denoted on your map, so when you're close enough, you will be able to see all of the exact locations on the minimap.

The final two energy readings are not in the water, but on the right side of the landmark on land, with one being at the main location and the second being at the floating balloon nearby.

Collect all three of them and you will move on to the next step in the Fortnite story questline.