HORIZON prisms are always produced to be within 5" accuracy, and we use only the best survey grade glass for our prisms. There are several grades of prisms and reflectors available in the market today. We are only manufacturer to invest in an interferometer which is used to test and verify our prism accuracies. We are also one of the pioneer manufacturers of survey prisms, and we believe in maintaining a high standard of manufacture, and do not compromise on our promise of quality, despite the pressure from competition. We are capable of carrying out customization and specialized work for prisms upon client request. Please email our team to enquire if you have such requirements.
For full specifications, please refer to our product brochure.