Genshin Impact · UPGRADE MATERIAL

Subdetection Unit

Used in supported upgrade goals for 2 records. Open a record to choose a target and calculate the exact requirement.

About Subdetection Unit

Local Specialty (Fontaine)

Detection units produced by Fontaine Research Institute using new models of artificed components. Its original purpose was monitoring all kinds of environmental data.

Where to obtain it

Recommendation: Found in Fontaine Research Institute of Kinetic Energy Engineering Region

Used by the supported upgrade goals listed below. Requirements depend on the selected current and target levels.

Owned Subdetection Unit

WHERE IT FITS

Characters and equipment that use this material

Cryo★★★★★

Sandrone

Released Jul 1, 2026Cryo damage dealer with a reaction-focused Radiance stateGuide

Sandrone is a 5-star Cryo claymore character who uses charged attacks to control Fagio's firing modes, while her skill provides mobility and Prism Shots. Consider her when you can use her Radiance states: Stellar-Conduct strengthens Superconduct, and Stellar Swirl strengthens Cryo Swirl after a nearby party member triggers it. Her mechanics reward managing Fagio's Decoding Power and timing her burst with Refined Tactics stacks.

Cryo★★★★★

Wriothesley

Released Oct 17, 2023On-field Cryo Normal Attack damage dealerGuide

Wriothesley is a Cryo Catalyst user who fights with rapid close-range Normal Attacks. His Skill strengthens those attacks when his HP is above half, while his low-HP passive supplies a Stamina-free enhanced Charged Attack and healing. Consider him when you want a field attacker whose damage and recovery both interact with HP changes.