# Which solution do I need? **URL:** \ **Category:** Positioning and Navigation\ **Created:** [September 17, 2026, 8:05pm UTC](https://community.sparkpnt.com/t/which-solution-do-i-need/70 "2026-09-17T20:05:47Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![Builder](https://avatars.discourse-cdn.com/v4/letter/b/d2c977/32.png) [@Builder](https://community.sparkpnt.com/u/Builder)\ **Post date:** [September 17, 2026, 8:05pm UTC](https://community.sparkpnt.com/t/which-solution-do-i-need/70/1 "2026-09-17T20:05:47Z")
Hello everybody. I am a contractor in NJ and I will soon be starting a subdivision of 20 homes. In the past, when I have done single homes, I have had the surveyors come down to mark out the foundation, and I pay about $500. I’m thinking that we can save a lot of money if we do our own solution. It looks like SparkFun has the most inexpensive devices. But I see that there are tons of kits and devices and I’m a little confused as to which one I should get. I also see that they have the point perfect accuracy correction, but it looks like that is only 3 to 6 centimeters, which I don’t know if it’s accurate enough, cant have a house 2-3 inches off. Any guidance on what I should be buying here? Obviously everybody on my team has a cell phone with mobile data. Thank you! ---
**Author:** ![Sparky](https://yyz1.discourse-cdn.com/flex009/user_avatar/community.sparkpnt.com/sparky/32/15_2.png) [@Sparky](https://community.sparkpnt.com/u/Sparky)\ **Post date:** [September 17, 2026, 8:48pm UTC](https://community.sparkpnt.com/t/which-solution-do-i-need/70/2 "2026-09-17T20:48:33Z")
Welcome Builder! Our devices are superb at outputting X/Y/Z but this is a far cry from what a land surveyor is licensed to do (and legally bound to). From what I’ve been told, surveying relies on a lot of relative distances from known monuments or locations and takes a considerable amount of training to get correct. Said differently, land titles/deeds don’t contain GPS coordinates, they instead refer to distances from other surveyed marks. For good reason: our units are accurate enough they can detect the migration of tectonic plates - today’s measured spot will move a few centimeters a year, every year, relative to the GPS system. So you really don’t want GPS coordinates in legal docs. But to answer you question: if you’re just starting out, the [TX2](https://www.sparkpnt.com/products/sparkpnt-tx2) is a fine beginner product. It’s got superb accuracy, and when connected with a correction service like our [PointPerfect](https://www.sparkpnt.com/products/pointperfect) ($15/month), or any other correction service you may have in NJ, it will get you very accurate stakeout lines for driveways or curbs and gutters, but property lines are more tricky. ---
**Author:** ![Builder](https://avatars.discourse-cdn.com/v4/letter/b/d2c977/32.png) [@Builder](https://community.sparkpnt.com/u/Builder)\ **Post date:** [September 17, 2026, 9:32pm UTC](https://community.sparkpnt.com/t/which-solution-do-i-need/70/3 "2026-09-17T21:32:29Z")
Thank you for the reply. We are not trying to replace a surveyor, and the jobs we do have a plot plan that has reference points that we can use to work off. ---
**Author:** ![Sparky](https://yyz1.discourse-cdn.com/flex009/user_avatar/community.sparkpnt.com/sparky/32/15_2.png) [@Sparky](https://community.sparkpnt.com/u/Sparky)\ **Post date:** [September 17, 2026, 9:49pm UTC](https://community.sparkpnt.com/t/which-solution-do-i-need/70/4 "2026-09-17T21:49:36Z")
Excellent! Consider the TX2 and let us know if we can answer anything else. ---
**Author:** ![Ryan.F](https://yyz1.discourse-cdn.com/flex009/user_avatar/community.sparkpnt.com/ryan.f/32/21_2.png) [@Ryan.F](https://community.sparkpnt.com/u/Ryan.F)\ **Post date:** [September 17, 2026, 10:09pm UTC](https://community.sparkpnt.com/t/which-solution-do-i-need/70/5 "2026-09-17T22:09:40Z")
Welcome @Builder ! RTK can be useful, but it wont replace work that’s normally produced with a Total Station. IE: RTK could set the building/pad corners, but using batter boards & string lines (or similar) for the final wall layout to square, etc. I’d expect you’ll be doing plenty of manual measuring anyway, so RTK can be a great fit.