Sensitivity

• 10 Angle minutes, bubble move by 2 mm (only version ALS)
• 40 Angle minutes, bubble move by 2 mm (only version KT)

Identification no.

• No. 1: Without contrast ring
• No. 2: With contrast ring (only version KT for d = 12...18)

Housing

• Aluminum

• Anodized, black ALS

• Viewing window, glass

• Plastic KT

• White

• Viewing window, transparent

Filling

• Colorless-transparent K

• Green-transparent G

• (only Version KT)