Product Specification
Good conditions (good visibility, overcast, twilight, low ambient light) | 3000m |
Good conditions (good visibility, overcast, twilight, low ambient light) | 400m |
Prism | ± (2 mm + 2 ppm·D) |
Reflectorless | ± (3 mm + 2 ppm·D) |
Standard mode | 1s |
Tracking mode | 0.8s |
Accuracy | 2" (0.6 mgon) |
Reading system | Absolute encoder |
Unit | Degree/Mil/Gon/V % |
Minimum increment (Degree, Gon) 2" models | 1.0" (0.2 mgon) |
Circle diameter | 74 mm (2.9 in) |
Horizontal/Vertical angle | Diametrical/ Single |
Tube length | 161.3 mm (6.3 in) |
Image | Erect |
Magnification | 30X |
Field of view | 1˚ 30' |
Resolving power | 3.5" |
Effective diameter of objective lens | 48 mm (1.85 in) |
Minimum focusing distance | 1.5 m (4.9 in) |
Laser pointer | Coaxial Red Light |
Reticle type | Crosshair |
Stadia ratio / Constant | 100 / 0 |
TILT SENSOR
Type | Single-axis |
Method | Liquid-electric detection |
Compensation range | ±3' |
Communication ports | 1 x serial (RS-232C) |
Wireless communications | No |
Output voltage | 3.6V |
Charging time, full charge both batteries | approx. 6.5h |
GENERAL SPECIFICATIONS
Sensitivity of Circular level vial on tribrach | 10'/2 mm |
Tubular | 30"/2 mm |
Circular | 8'/2 mm |
Tangent clamps | Yes |
Internal plummet | Class 2 Laser (1.5mm@ 1.5 m) |
Dimensions (W x D x H) | 180 mm x 175 mm x 355 mm |

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Telescopic Levelling-Staffs | Heavy Duty Wood Tripod | High precision Prism with Holder |
GPR121 Circular Professional Prism | Tilting 25mm Mini Prism | 90°L-bar Monitoring Prism |
Circular Prism with Polymer Holder | Rotating Tribrach Adapter | Tribrach with Optical Plummet |
Who We Are
Headquartered in China, Commander group markets surveying equipment and surveying accessories. We are market oriented and depend on technology innovation to provide customers with excellent products and services.
What We Do
We sell and support major brand names of engineering supplies. We supply surveying equipment and accessories, including prisms, tribrachs, poles, tripods, staffs, laser scanner accessories and more.
Why Choose Us
We carry out strict quality control according to ISO 9001 quality management system. Excellent products have been sold to many countries and areas, we have a long term cooperation relationship with America, Europe Union, Asia, Africa and Middle East countries. We have been striving to grow and expand through many years effort, basically our products have enabled us to meet our customers diversified requirements.






FAQ
Q1: What are your main products?
A1 : Prism, Prism Glasses, Tribrach, Prism Pole, GPS Pole, Tripod, Leveling Staff and so on.
Q2: Whats your payment method ?
A2:We accept T/T in advance,L/C at sight,Western Union,Paypal ,Secure Payment and Credit Card. For L/C payment, somecountries and some models are not available.
Q3: How can you guarantee the safety of my funds?
A3:Trust is a always problem for international trade,we believe good business credit and reputation is the most important for businessman.We recommend Trade Assurance service by Made-in-China Group. We wont get the fund unless you get the product and confirm the payment.