GPR121 Pro Precision Circular Prism with Holder and Target Plate 641617

• Prism diameter: 64mm.

• Prism Constant: -34.4mm 

• Prism material: Superior quality K9 glass.

• Target Plate Material: Aluminium alloy.

• Prism housing material: A380.

• Accuracy: ≤5''

• Leica offset: 0.0mm

• Centring accuracy: 0.5mm

• Prism Surface Quality: 60/40

• Range: 11,500 ft (3500 m) .