Atomos UltraSync One

Pro-level timecode. Compact, reliable sync.
The Atomos UltraSync ONE is a powerful, professional timecode generator and synchronizer that delivers accurate, rock-solid sync across cameras, audio recorders, and other production gear. Designed for demanding multi-camera shoots, it’s the smallest and most versatile solution in its class—built to keep your entire workflow frame-accurate and streamlined.

High-Precision Timecode and Genlock
UltraSync ONE provides ultra-accurate timecode, genlock, and word clock sync for all your devices, with sub-frame precision. Whether you’re working with cameras, sound recorders, or video transmitters, it ensures every frame and waveform stays perfectly aligned through the entire production.

Long Battery Life, Lightweight Build
Weighing just 39 grams, UltraSync ONE is compact enough to mount anywhere, while delivering up to 25 hours of continuous operation on a single charge. The built-in rechargeable Li-ion battery makes it ideal for long shoot days, multicam events, or remote field productions.

Wired and Wireless Syncing
Use the two 3.5mm mini-jack ports to output LTC timecode or connect to devices via supported sync cables. UltraSync ONE also features long-range RF sync (up to 200 meters), allowing it to communicate wirelessly with other units in the Timecode Systems ecosystem—like UltraSync BLUE, AtomX SYNC, or the master Timecode Server.

Seamless Integration with Atomos and Third-Party Gear
UltraSync ONE is fully compatible with Atomos monitor-recorders, audio gear, and other supported camera systems. It can be used on its own or as part of a broader wireless timecode setup using the AtomX SYNC module, Atomos CONNECT-enabled devices, or Atomos Cloud Studio.

Who is it for?
The UltraSync ONE is made for filmmakers, audio recordists, DITs, and live production teams who need a professional-grade, cable-ready timecode solution. Whether you’re syncing mirrorless cameras with audio recorders or managing a full multi-rig shoot, UltraSync ONE ensures everything runs in perfect time.