Pi4 Eyewear Alexandrite/YAG/Diode/CO2 Laser Safety Glasses. Pi4 Laser Glasses. Laser Type: Alexandrite (755 nm OD7), Diode (650 – 655 nm OD2), Diode (940 nm OD 5), Disc (1030 nm OD 7), Faser (976 – 1080 nm OD 7), Nd:YAG (1064 nm OD 7), Ti:Sapphire (800 nm OD5), CO2 (10600 nm OD 7).
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