Stabila 81S REM Torpedo Level - 10" ....compact bevelled shaped level with a die-cast aluminum body which makes it one of the sturdiest levels that STABILA makes. This level is for those who need both hands free when aligning and levelling on ferous metal surfaces & structures. The 81S-REM Torpedo has a rare earth magnet system with extra strong holding-power. The vials are precisely aligned with the milled measuring surface then locked together. This gives you years of accurate levelling.

• 2 Vials: 1 plumb & 1 horizontal.
• Accuracy: Normal Position: 0.029°=0.5mm/m.
• Accuracy: Overhead Position: 0.043°=0.75mm/m.

I've only been able to find this REM model in Europe. I imported a few and will be keeping 2 for myself to use for metal cabinet installations on garage projects. Years ago, I used a Smart Level to level a bank of cabinets that turn out to have lost calibration. Cost me a few hours of extra work to relevel everything using a trusty 2-vial bubble level. Limited supply.