"The one CalTrans purchased punctured the roof of the suburban and one of the waterproof lasers had to be replaced due to leakage." The stock roof rac...

If you name both your GPS & DiNi points the same name the DiNi data overrides the Z in TBC.

The S6 has a built in barometer in it. Only need a good thermometer.

Do not use any 360 prisms in your traverse if you are, they will get you bad results. Trimble 360 prisms should only be used for topo and stakeout.

Tom, Trimble has just released a new series of TS's. I would check out the S7, it supposed to be a little cheaper than an S6 but have the same feature...