Technologies
Multi-Sensor-Detection
Up to five sensors for reliable arc detection anywhere
Infrared sensors and a light sensor work together to detect the arc reliably, even in awkward positions and changing lighting conditions.

Multi-Sensor-Detection is a system of several sensors that continuously monitors working conditions and decides when the filter darkens. The newer series — panoramaxx (including the laser versions), helix and sphereX — use five sensors; crystal2.0, e684, vegaview2.5, liteflip and neo p550 use three.
Not all sensors are the same
Two to four infrared sensors (depending on the model) pick up the invisible IR radiation emitted by the arc, the weld pool and glowing workpieces. A light sensor measures the intensity of visible light and feeds the ShadeTronic® automatic shade control.
What you gain
The infrared sensors have overlapping detection angles, so together they cover a much larger area. The arc is detected even in difficult welding positions and poor lighting, and the filter switches more stably and is less prone to interference. Continuous monitoring reacts to even small changes in arc intensity, which reduces eye strain.
Even if the filter failed to darken, you would still be protected: the UV and IR filters work passively, all the time.
Videos
0:52optrel expert eng patented sensorslideWatch on YouTube
Used in
e684A sphere-series auto-darkening helmet with top optical class 1/1/1/1 and ShadeTronic® that sets the shade from 5 to 13 for you.
NewsphereX quattroA sphereX helmet with a field of view over 30% larger, the best viewing angle dependence class (V1) and ShadeTronic® 5–13.
vegaview2.5A sphere-series auto-darkening helmet with an extra-bright light state of 2.5 and a manually set shade range of 8–12.
NewsphereX 2.5A sphereX helmet with a field of view over 30% larger, a bright 2.5 light state and ShadeTronic® across 5–12.
liteflip autopilotA super-lightweight flip-up helmet with automatic shade 5–14 and a clear view for grinding once you flip the filter up.
crystal2.0An auto-darkening helmet built on crystal lens technology: light state 2.0, true-to-life colours and ShadeTronic® across 4–12.
NewsphereX cltA sphereX helmet with crystal lens technology: light state 2.0, a field of view over 30% larger and ShadeTronic® 5–12.
neo p550A lightweight Y-series auto-darkening helmet: shade 9–13, interchangeable side panels, grind mode and plasma cutting.
panoramaxx 2.5Lightweight auto-darkening welding helmet (575 g) with a Panorama-XXL field of view, ShadeTronic® 5–12 and grind mode.
panoramaxx quattroAuto-darkening welding helmet with top optical class 1/1/1/1, a Panorama-XXL field of view and ShadeTronic® 4–13.
panoramaxx cltAuto-darkening welding helmet with a crystal lens technology filter: light state 2.0, true colour view and a Panorama-XXL field of view.
panoramaxx hybridHelmet for laser and conventional welding: laser protection, ShadeTronic® 5–13 and manual mode 4–9 recommended for laser work.
panoramaxx hybrid cltLaser welding helmet with a crystal lens technology filter: laser protection, ShadeTronic® 4–12 and manual mode 3–8.
helix 2.5Slide Up welding helmet with a Panorama-XXL field of view, ShadeTronic® 5–12 and 5 sensors — with or without an industrial safety helmet.
helix quattroSlide Up welding helmet with top optical class 1/1/1/1, ShadeTronic® 4–13 and a Panorama-XXL field of view — with or without a safety helmet.
helix cltSlide Up welding helmet with a crystal lens technology filter: light state 2.0, true colour view and ShadeTronic® 4–12.
e684 PAPRThe e684 with air supply: optical class 1/1/1/1, ShadeTronic® 5–13 and respiratory protection with e3000X or suppliedair.
NewsphereX pure air quattroThe sphereX quattro with air supply: field of view over 30% larger, angle class V1, ShadeTronic® 5–13; for e3000X or suppliedair.
panoramaxx pure air 2.5PAPR welding helmet for e3000/X or suppliedair, with a Panorama-XXL field of view, ShadeTronic® 5–12 and grind mode.
liteflip autopilot PAPRA super-lightweight flip-up PAPR helmet: automatic shade 5–14, a clear view for grinding, for use with e3000X or suppliedair.
panoramaxx pure air quattroPAPR welding helmet for e3000/X or suppliedair, with top optical class 1/1/1/1, a Panorama-XXL field of view and ShadeTronic® 4–13.
panoramaxx pure air cltPAPR welding helmet for e3000/X or suppliedair with a crystal lens technology filter: light state 2.0, true colour view, ShadeTronic® 4–12.
vegaview2.5 PAPRThe vegaview2.5 with air supply: a bright 2.5 light state, shade 8–12 and respiratory protection with e3000X or suppliedair.
NewsphereX pure air 2.5The sphereX 2.5 with air supply: field of view over 30% larger, light state 2.5, ShadeTronic® 5–12; for e3000X or suppliedair.
panoramaxx pure air hybridPAPR laser welding helmet for e3000/X or suppliedair: laser protection, an auto-darkening filter and a Panorama-XXL field of view.
panoramaxx pure air hybrid cltPAPR laser welding helmet with a crystal lens technology filter: ShadeTronic® 4–12, manual mode 3–8, weight 850 g.
crystal2.0 PAPRThe crystal2.0 with air supply: crystal lens technology, light state 2.0, ShadeTronic® 4–12, for use with e3000X or suppliedair.
NewsphereX pure air cltThe sphereX clt with air supply: crystal lens technology, light state 2.0, field of view over 30% larger; for e3000X or suppliedair.
helix pure air quattroSlide Up welding helmet with air supply from e3000/X or suppliedair, a quattro filter with optical class 1/1/1/1 and ShadeTronic® 4–13.
helix pure air cltSlide Up welding helmet with air supply from e3000/X or suppliedair and a crystal lens technology filter: light state 2.0, ShadeTronic® 4–12.
helix pure air 2.5Slide Up welding helmet with air supply from e3000/X or suppliedair, a Panorama-XXL field of view and ShadeTronic® 5–12.
All technologies
- crystal lens technology (CLT)A bright, true-colour view — almost like a clear window
- ShadeTronic®The right shade level, set automatically and steplessly
- Panorama-XXL field of viewSix times the field of view of a standard filter
- FadeTronicGentle opening of the filter after welding
- Position LockerYour helmet stays exactly where you put it
- TH3/TM3 respiratory protectionThe highest protection classes for powered air systems
- Filter technologyThe right filter for dust, fumes, gases and vapours
- ATEXRespiratory protection for potentially explosive atmospheres
- Laser protectionCertified eye and face protection for laser work