Tunable Gaming Mouse

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Personally-tuned Performance

Adapts to your environment

Fine tune the optical sensor in Proteus Core to your playing surface for better accuracy, precision and responsiveness. A quick tuning process, and you are battle ready.*

G502 Proteus Core is pre-tuned for Logitech gaming mouse pads, G240 and G440. Add a mouse pad for extreme accuracy.

Representation of surface tuning optical sensor

You control the weight and balance

Tip the balance in your favor

Customize the gaming mouse to the weight and balance that feels good to you. Proteus Core comes with five 3.6g weights. Add some or all, and arrange their positions for a mouse tailored to you.

X-ray close up of weight and balance areas

11 programmable buttons

Control at your fingertips

You have go-to game commands and macros. Program each of the 11 buttons with your favorites. Save your setting to one of the onboard profiles. Or, select from thousands of profiles on your PC. *

  • * Logitech Gaming Software (LSG) is required to change button programming. LSG is not required for onboard memory settings.

    Get Logitech Gaming Software
G502 angle view close up of dual mode scroll wheel, and dpi buttons

In-game DPI shifting

Be ready in an instant

Proteus Core helps you be an unstoppable force in low or high DPI. Shift through five DPI settings, from headshot-precise 200 DPI targeting to lightning-fast 12,000 DPI maneuvers.*

Close up of DPI buttons for in game shifting

Gaming-grade dual-mode, hyper-fast scroll wheel

Precision and speed

You decide the mode with Proteus Core. Choose whether you want click-to-click precision or hyper-fast scrolling.

Close up of gaming grade dual mode scroll wheel

Additional Features

  • Most accurate sensor on the market
  • 32-bit microcontroller
  • 3 on-board profiles
  • 1 millisecond report rate
  • Primary buttons rated to 20 million clicks
  • Mechanical microswitches
  • Improved keyplate design for better click feeling and performance
  • Braided cable with hook and loop cable tie
  • Sleep mode disabled
  • 3 DPI indicator LEDs
  • Rubber grips
  • Magnetic weight-cavity door

G502 side view close up


Part Number
Warranty Information
3-year Limited hardware warranty
System Requirements
Windows® 8, Windows 8.1, Windows 7 or Windows Vista®
Powered USB port
Internet connection and 100MB hard drive space (for optional software download)
Package contents
Tuning weights and weight case
User documentation
Technical Specifications
Resolution: 200 – 12,000 dpi
Max. acceleration: >40G*
Max. speed: >300 ips*

* Tested on Logitech G240 Gaming Mouse Pad
USB data format: 16 bits/axis
USB report rate: 1000 Hz (1ms)
Microprocessor: 32-bit
Dynamic coefficient of friction - Mu (k): .10*
Static coefficient of friction - Mu (s): .15*

*Tested on wood-veneer desktop.
Buttons (Left / Right): 20 million clicks
Feet: 250 km (155.3 mi)
Physical specifications
Height: 132 mm (5.2 in)
Width: 75 mm (2.95 in)
Depth: 40mm (1.57 in)
Weight: 168 grams (mouse plus cable (5.9 oz)
Weight: 121 grams (mouse only) (4.3 oz)