Description Total Station Bluetooth Adapter features Built-in Battery (Charger NOT included) Requires cell phone style charger (not included) Small package size: 2-1/2″ x 1-3/8″ x 5/8″ Bluetooth indictor light show Available and Connected status NOT waterproof OUR TOTAL STATION BLUETOOTH ADAPTER HAS BEEN TESTED AND IS APPROVED FOR USE WITH CARLSON SURVCE / PC and Topcon total stations. Known Compatible Instrument Models *Pay close attention to the following list of compatible models (below) and notes regarding what is required to make this work before purchasing. If you are not comfortable re-configuring the settings in your instrument DO NOT PURCHASE this item. ** Not compatible with all Data Collector Software packages. We have tested this with Carlson SurvCE & SurvPC. You will need to verify that YOUR data collector software will allow BlueTooth connection to your model total station. We cannot verify this for you. TOPCON: ( all models must be configured to work ) GTS 200 series GTS 210 series GTS 220 series GTS 230 series GTS 300 series GTS 310 series GTS 600 series GPT 1000 series GPT 2000 series GPT 3000 series GPT 3100 series GPT 6000 series Nikon:  NOT COMPATIBLE