The Trimble Mini Prism Kit is a compact, high-precision surveying solution designed for use with Trimble total stations and EDM instruments. Featuring a 25.4 mm mini prism, modular mounting options, and an integrated levelling bubble, it delivers reliable accuracy for construction, engineering, monitoring, and general surveying applications. The kit includes sectional poles, adapters, and a durable carry case for convenient transport and field use.

Tech Specs

• Part Number: 187311
• Prism Diameter: 25.4 mm (1")
• Measurement Range: Up to 1,500 m (4,921 ft)*
• Tracker Range: Up to 500 m (1,640 ft)*
• Prism Constant:-17.00 mm (nodal mounted) 0 mm (reversed prism position)
• Centring Accuracy: ±0.3 mm
• Prism Rear Coating: Protected silver
• Anti-Reflective Coating: Yes, optimised for Trimble EDMs
• Integrated Levelling Bubble: Adjustable 25'
• Thread Type: 1/4" UNC
• Pole Adapter: 1/4" to 5/8" UNC
• Mini Pole Height: 200 mm to prism centre
• Standard Target Height: 135 mm using supplied adapter
• Prism Height: Modular system depending on mounting configuration
• Carry Case Dimensions: 420 × 130 × 100 mm
• Carry Case Weight (including contents): 1.46 kg

Kit Includes

• Mini Prism
• Four 300 mm sectional pole segments
• 50 mm point
• Mini pole
• Pole adapter (1/4" to 5/8" UNC)
• Protective carry case