Navitek Red S4 Air Fed Auto Darkening Welding Helmet

• The Navitek S4 combines the S4 autodarkening filrer with one of the largest clear grinding visors available on the market. 
• Certified for grinding with the specific standards EN166B and EN175B
• Excellent ergonomics provide good protection of the forehead, ears and neck 
• Shades can be selected using the stepless knobs, which also enable adapting of the sensitivity of the 4 arc sensors and adjustment of delay according to the welding application. 
• Equipped with longitudinal headgear with 4 settings: height, width, angle and longitudinal adjustment for welders operating with corrective glasses. 
• S4 autodarkening filter offers a 93x43mm viewing area with a perfect vision of the fusion during welding thanks to excellent 1/1/1/2 optical classes.
• The 4 sensors have fast switching speed of 0.2ms for flawless detection of the welding arc, with all welding processes.
• With the airkos, the navitek S4 provides filtration of the solid and liquid particles. The bolted and flame retardant face seal guarantees a limited TH2 inward leakage inside the headtop.
• Main filter is reusable
• Clogged filter alarm
• Low battery alarm
• Airkos blower unit is approved and certified according to EN12941 standard

Technical specifications

• Welding shade: Variable DIN 9 to DIN13 
• LC Technology: Twisted nematic
• Optical Classes: 1/1/1/2
• Sensitivity setting: Stepless
• Power: Solar
• Delay setting: From 0.1s to 1s
• Filtration: TH2PSL
• Sound alarm: Clogged filter, low battery
• Battery: Lithium-Ion - Removable
• Charger: 6 hours smart charge
• Spark protection: Indirect filter cover
• Sound level: 60dB
• Grinding: Yes - Clear grinding visor
• Airflow: 180l/m and 220l/m
• Operating time: 9-10 hours
• Arc sensors: 4, independent
• Switching speed: 0.1ms
• Side vision: Shade DIN5 polycarbonate