Some of the features that Locus™ offers which ProMark2™ does not at this time are: Kinematic mode, Adjustable Epoch recording intervals ( ProMark2™ is fixed at 10), No Cabling & connectors, Simple session status L.E.D. indicators, approx. 100 hours battery life vs. approx. < 30 hours for the ProMark™2 with the external power pack, Larger temperature operating range -20 to +65 C vs. -10 to 60 C, more shock resistant 2.2 meter vs. 1.5 meter, Receives and store Almanac, Less attractive to thieves and harder to misplace ( opinion ).

The ProMark™2 has Features that makeup for the CONS, such as: 56% lower in Price for 2 receiver Kit (that’s the big one, you almost can not afford not to have it in your truck ), Recon capability at < 3 meters with External Ashtech® ProAntenna connected < 5 meter with only internal antenna, the capability of directly entering the Site ID which is always a cause of confusion at the post processing stage in the office especially, if some one else other than the field crew is post processing the data.

The ProMark2™ is shipping now and we have received these units already. Both the Locus™ and the ProMark2™ are great products, and thanks for Ashtech™ Precision Products that make it affordable