This surveying prism features "water-proof and with LED strobe light" for all weather conditions and 3 accuracies (<3",<5",< ... BK208AY02-RD103, AY02-RD105, AY02-RD108 (water-proof; with LED Strobe Light)AY02-YW103, AY02-YW105, AY02-YW108 (water-proof; with ... LED Strobe Light)CPR103, CPR105, CPR108CPR203, CPR205, CPR208Macro-360, Macro-360C, Micro- ...