The Trimble 835 is a great little total station….light…compact…great battery life… and comes with on board data collection using Trimble LM80.
I am a big fan of on board data collection for a conventional total station. You don’t have any cables to mess with, nothing hanging on the tripod, nothing extra to charge and keep track of, and the data collector is always facing you no matter which way you turn the instrument.
Also available in other flavors…..Trimble Access on the M3, and Spectra Precision Survey Pro on the Focus 8.
We have sold several of these to companies for gathering information for calculating stockpile quantites.
They have been using the reflectorless technology to gather the information without having to climb on the stockpiles.
The Trimble 835 also excells at it’s original purpose, that of construction layout.