DMM Ceros Locksafe Carabiner with Captive Bar

The DMM Ceros carabiner pairs a Locksafe auto-locking gate with a captive bar that holds a device or rope in one position. That keeps the load off the minor axis, which is useful anywhere a connector could rotate on a bridge, ring or device.

What the captive bar does

A carabiner that can rotate can end up loaded across the gate, where it is much weaker. The Ceros bar splits the basket so a device, eye or ring stays at the spine end. Climbers use it to attach a mechanical device to a bridge, to hold a rope wrench tether in line, or anywhere they want the connector to stay oriented.

Keep the Ceros dedicated to the job you set it up for. Moving it between roles makes it easy to forget which side of the bar carries the load. Many climbers mark it with colored tape on the spine, away from the gate and the rope-bearing surfaces, so it stays on the device it belongs to.

The Locksafe gate needs a deliberate sequence to open, so it will not roll open against bark or a branch. See our other auto-locking carabiners for different shapes and sizes.

Checks before every climb

Open and close the gate and make sure it snaps fully shut and locks on its own. Look for grooves worn by rope, burrs, cracks or a sticky gate, and clean out grit with warm water if the action slows down.

Treat it as life-support gear: follow the manufacturer's instructions, check it before every climb, and retire it after a hard fall, a drop onto a hard surface, or any damage you can't explain. Use it within an ANSI Z133 program and only after proper training.