Helix Series

Helix 2.5

Product #: 1050.000

The Helix 2.5 – the new slide-up welding helmet with a panoramic field of vision and a brightness level of 2.5 – built for welding in the toughest conditions. With the Helix 2.5, you’re prepared for all welding tasks that require a large field of vision and frequent switching between transparent and protective filters. With a light level of 2.5 for welding and a shade range from 5 to 12, it’s the ideal choice for a wide range of applications. Hard work has never been so easy.

List Price:



Slide Up

Slide Up Feature


Opening of the anti-glare display can be continuously adjusted after welding to significantly reduce eye fatigue


Automatically adapts to changing light conditions of the welding arc


Anti-Glare feature

Removable Hardhat

Removable Hardhat Feature

Twilight Function

Twilight Function Feature

Sensitivity Control

Sensitivity Control Feature

True Color Vision

True Color Vision Feature

Opening delay

Opening delay Feature

Overhead Welding

Overhead Welding Feature

5-Point Detection

intelligent five-sensor control to adjust shade levels even in the most difficult lighting conditions

Rechargeable Battery

Rechargeable Battery Feature

Warranty Extension (2+1 years)

Warranty Extension (2+1 years)


Protection Levels ShadeTronic inactive: protection level 2.5 active, manual: protection levels 7-12 Automatic
protection level regulation over the protection level range 5<12M with individual calibration option
of ± 2.
Power Supply Solar cells, Li-polymer battery, chargeable via micro USB cable
Battery Life 300 to 500 charging cycles
Sensors Five sensors
Sensitivity Infinitely adjustable, new with “Super High” sensitivity
Switching Time light to dark:
0.090 ms at room temperature
0.070 ms at 55°C
dark to light:
0.1 s to 2.0 s (with FadeTronic)
Field of View Depending on headgear adjustment, 2.3 to 6.3 times the field of view of a 100 x 50 mm
industry standard anti-glare cassette
Classification EN379 Optical class: 1
Stray light class: 1
Homogeneity class: 1
Angular dependence class: 2
Dimensional Stability Welding protective mask: up to 220 °C
Front lens: up to 137 °C
Eye Protection Ultraviolet/Infrared Protection: Maximum protection across the range of protection levels
Operating Temperature -10°C to + 55°C / 14°F to 131°F
Storage Temperature -20°C to + 70°C / -4°F to 158°F
Total Weight 640g
Certifications CE, UKCA, ANSI, EAC, AS/NZS, meets CSA Z94.3
Meets pr ISO 16321 standards “TIG+” (“low amp Tig” process)
Scope of Delivery Welding helmet, optrel IsoFit® headgear, removable hardhat, operating instructions, storage
bag, micro USB charging cable, hard hat, front lens, guarantee card
Warranty From the date of purchase: 2 years for manufacturing and material defects, 6 months for the
Extended Warranty 1 additional year (excluding the battery) if you register your product within the first 6
months (from the date of purchase) at https://optrel.us/product-registration/


Stick Welding (SMAW)
MIG/MAG (Metal Inert Gas Welding, GMAW)
GMAW high performance welding
Cored wire welding
TIG welding (TIG, GTAW)
Plasma welding
Plasma cutting
Gas welding
Grinding mode



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Product Variants:

Accessories & Replacement Parts:

USA Distributors:

Baker’s Gas & Welding Supplies

Canadian Distributors: