The PurgEye ® Site Weld Purge Monitor®, virtually non-destructible, for those 'On Site' conditions. OLED Display, readings indicated as PPM or percentage, IP65 with lid open, IP68 with the lid closed. Monitor your oxygen levels from 1000 to 1 ppm (accurate to 10 ppm) easily and safely. Use the PurgEye® Site, a guarded Weld Purge Monitor® in a secure, safe, waterproof, dustproof, the perfect box for 'On Site' Weld Purging.