The PROMAX 350 electronic welding helmet is suitable for MIG, Stick & TIG welding. Stand-out features include; 4 sensors for reliable switching & a generous viewing area, larger than many other helmets in this class. Variable Dual-Shade 5-8/9-13, Sensitivity & Delay Adjustments, Grind-Mode switch, replaceable battery, magnification lens holder & more. Comfortable, very lightweight & superior optics. Applications Ideal for MIG & Stick Welding, also suits TIG applications down to 30 amps For: Light to Medium Fabrication, Rural, Maintenance, etc Features Generous Viewing Area: Larger than many other helmets in this class (100 x 53mm) 4 Arc Sensors: for reliable arc detection & switching Reliable Power Source: Replaceable battery, solar assist, efficient electronics for low power consumption Ultra Clear Vision Magnification Lens Holder Light Weight & Comfortable AS1337.1 High-Impact Rated: A must for many work sites Grind-Mode: Locks the lens in light shade at the flick of a switch Shade, Sensitivity & Delay Adjustments: Precise & easy-to-use controls Dual Shade Range 5-8 / 9-13 plus grind mode to cover a wide range of welding processes Auto-darkening lens complies with AS1338.1 'Hinge & Lock' Lens Retainer System = Easy cover lens replacement, Seals tightly against spatter to prevent damage to electronic lens Full Laminate' Lens Construction: Each layer in the electronic lens assembly is firmly laminated for superior optical quality and long service life. This is in contrast to cheaper lenses which are simply glued on the edge and, over time, are prone to contamination and failure Auto-on & Auto-off = No buttons to press, Hassle-Free operation Specifications Suitable Welding Processes MIG, MMA/Stick & TIG (≥5 amps), Grinding Suitable Applications Light industrial & maintenance, Rural, etc Switching Speed Conforms to & exceeds requirements of AS/NZS 1338.1 Standard Arc Sensing 4 Sensors TIG Optimised Yes. Suitable for low-amp TIG down to 30 amps Power Supply 1 x CR2032 replaceable battery & Solar assist On / Off Ready to use at any time, no switching required Inactive Shade (Grind/Off) Shade 4 Active Shade (Weld) 9-13 Sensitivity Low – High Delay 0.1 – 1.0 seconds Grind Mode Switchable On/Off Weight 480g Viewing Area 100x53 mm Cover Lens - Inner 116 x 95mm – Part No. WC-05321 Cover Lens – Outer 115 x 104mm – Part no.