Welcome to the NuclearQuads website!

Home of the only commercially available RotorHazard FPV timers.

• NuclearQuads is the name of my brand, that started with ELRS hardware and transitioned into FPV timers.
  • NuclearHazard is my line of RotorHazard-based timers.
    • NuclearHazard Core (discontinued) is the older 8-channel model.
    • NuclearHazard Atom (discontinued) is the 2/3 channel Wi-Fi only model.
    • NuclearHazard Fission is the new 4/8 channel model with built-in PoE.
• RotorHazard is the open-source software that runs on the timers and is not created by me. See its releases page for the latest version.

Current products

See the store for current prices and stock.

• NuclearHazard Fission - Complete — pre-assembled Fission timer, configurable in the store.
• NuclearHazard Fission Kit — kit PCB and parts. Add your own Raspberry Pi, SD card, RX5808s, power supply, and 3D-printed case.
• NuclearCounter — compact counter that works as a RotorHazard USB node or a standalone solo timer with the StarForge project.

Why a NuclearHazard timer?

• Powered by the trusted RotorHazard software
• Works with Analog, HDZero, DJI, Walksnail
• Power with battery, DC, or PoE
• View and control from a phone, tablet, or computer
• Pilots can see upcoming heats, leaderboards, lap times all from their own device
• Calibrate at any time, even after the race. No more manually entering times!
• Audio callouts
• HDZero backpack compatible, for lap times on the pilot’s OSD
• Great for practicing at home or full-up events
• Options for 4 or 8 channels
• Connect over wifi or ethernet
• Built-in power monitor, optional plugin for low battery alert
• Not reliant on PC connection, timing is done all in the timer
• No subscriptions, buy once and own it
• Instructions on nuclearquads.com, support on RotorHazard discord
• Works with FPV Trackside

Running MultiGP events

RotorHazard supports the community MultiGP Toolkit plugin, developed with cooperation from MultiGP, which interfaces the timer with MultiGP’s RaceSync system for event management and result uploads. If you plan to run MultiGP Global Qualifier events, check the currently approved software versions before the event.

Site guide

• Kit Instructions — build the Fission (or the older Core kit)
• Troubleshooting — common problems and fixes, including reflashing the SD card
• RotorHazard Usage — default passwords, addresses, timing workflow, updating
• News — stock updates, releases, and store announcements
• Shop — buy timers and parts, plus FAQs

Watch the process to assemble your own RotorHazard timer from a kit!

“NuclearHazard Fission Kit Assembly”

Don’t want to build your own? Look at the pre-assembled options!

“NuclearHazard Pre-Assembled Timers”