Surveying Equipment, NOAA Certificated SMA26 GNSS IMU RTK GPS Rover Base Handheld Collector with Survey Software, Max10km and 0.5cm Accuracy,32G Storage (Exclude Tripod&Pole)

MUY BUEN PRODUCTO YA LLEVO MAS DE DOS MESE CON EL, EL GNSS R26 - V2 ES MUY BUEN PRODUCTO YA QUE TIENE CALIBRACION DE LA NOAA PARA PROCESOS PPP ARROJA MUY BUENOS RESULTADOS AUN EN CIUDAD Y A CIELO ABIERTO MUCHO MEJORES POR EL METODO ESTATICO. EN RTK LA UNIDAD DE MODULO INERCIAL ES DE GRAN AYUDA YA QUE HAY PUNTOS DIFICILES Y TE AYUDA MUY BIEN. EN RESUMEN UN EQUIPO QUE VALE MUCHO LA PENA ADQUIRIRLO.

We purchased this to be used in place of, or in supplement to, a total station for survey and mapping on an archaeological project. We had been hearing from colleagues for a few years now on the merits of a dGPS in an archaeological setting and this year we felt it was time to jump on the bandwagon. This product did not disappoint. First, I will admit that what drew our attention first and foremost is the price. The fact that we could purchase not one, but two units (one to serve as a base and the other as a rover) for less than $3K, which is what we would be paying for one decent used total station, was mind-blowing. Reading the reviews gave us pretty good confidence in the product, so we pulled the trigger. The reason why we're writing this review is, however, not because of how little it cost, but how well it performed in the field. It took literally minutes to figure out the settings, thanks to little details like voice notification from the units themselves, clarity of the UI of their software (SMA Survey), and some helpful videos on YouTube. As with any new ecosystem, it takes a while to figure out what's going on (it took a little while for us to work out how stakeouts work), but once there, everything became a breeze. We were collecting topo data at the speed of walking, literally. Tilt compensation is a game changer for mapping. We even tried laying out units (which we traditionally have used the total station for), which may not be quite as accurate as a TS but the time-savings may very well offset it. What perhaps may be of most value, however, is their support. Since we were slightly anxious about taking into the field not only a newly purchased product, but a new-to-us set of instruments, I contacted their support and they immediately set up a WhatsApp support thread with us so that we could make inquiries and usually get responses within 24 hours. Their dedication to making their products easy to use in device design, UI design, and support structure is, perhaps, the real winner here. Can definitely recommend.

After getting some rather shocking pricing from surveyor for stakeout services for the new house I am in the process of building, I began looking for a better way. I have some background in "lite" surveying tasks, and I own a theodolite, but that's a two-person tool and while very reliable and precise, not exactly a modern survey solution. I knew a robotic total station was way out of my budget and I was pleasantly surprised to find GNSS/GPS systems are available at a relatively reasonable price. While I considered one of the more "professional" name brands, two manufacturers available on amazon seemed like they had sufficient features and at least claimed the accuracy that I was looking for. I settled on this SMA26 Plus kit after debating back and for with the other available brand. I have been very pleased with the operation of this system. As noted by others, there is definitely a bit of a learning curve, even if you are familiar with traditional surveying techniques. There is initial setup getting the base and rover synchronized and also connected to the data collector. Getting localized seemed like a straight forward task based on youtube videos of other brands. But that brings me to the only slight disappointment with this kit, the data collector software. Most of the terminology is standardized, but some of it is not. I did a lot of googling to figure out what various available setting did, and what common recommendations are for those settings. Smajay's videos are pretty bad. They do not delve into enough detail and they are way too fast. I highly suggest finding other how videos on GNNS surveying and watch those before bothering to watch the Smajay ones. I already owned a tripod, but I needed to pick up a tribrach to mount the base unit, a prism pole for the rover and a bipod (for the rover). After a couple evenings of playing around with the kit around my yard, I uploaded my CAD file and set off to do some actual work with it. I have become more and more impressed with it and the accuracy for localized surveying. My satellite connections have been really good. I have localized my site based on existing property corner pins. After localizing to the first two, I found every other pin with and inch of is location on the plat. I was also able to localize my vertical control from a survey monument about 2,000-feet away from my property. Vertical shots were spot on to the topo's from our locally available GIS data. The most critical test came with building stakeout. I gave the concrete sub two lines and two points to work from. The foundation layout is not a simple one, including a 45-degree wing. I worked parallel to the crew who were calculating manually and measuring out and squaring up every corner point manually. Each corner we were within 1/8-inch of each other, until we weren't because they made an error in calculation. I don't know what the anticipated useful life is for this Samjay GNNS kit, but I have a high level of confidence that it can provide accurate AND precise surveying and stakeout results. You do need to be patient with it to get the most accurate results, letting "normal" points "cook" for 15-30 seconds, and any hubs or benchmarks 60-seconds for the best possible readings, but it has been much faster than I could have every done with a theodolite and a second person. It has also saved me from having to pay a surveyor 4x what this cost to come in and do my stakeout for me. I would absolutely recommend this kit to anyone with a bit of surveying knowledge that wants to try out GNNS RTK surveying.

I'd like to start by saying though I've used and tested various brands of GPS equipment. I purchased this one and immediately was not disappointed. After about a month of tests, I've found this product to be reliable and consistently accurate. The GPS receivers will definitely run for more than a day with just one charge. The USB-C charging cables provided are great, especially compared to working with other major brands that require a special charging base for charging the batteries. As a test I went almost 5 miles away from my base and still had reception. The IMU is accurate as well. The data collector and software has been great as well. The software is pre-installed and runs pretty smooth. It allows you to plug in a SIM card for those that enjoy using NTRIP services for their surveys. Long story short, the unit and software is a great value for your money. Their customer service is amazing. Just send them an email and they will respond in under 24 hours with the correct and detailed information. I don't normally write reviews for anything, but this equipment is definitely worth purchasing and trying out, because you will not be disappointed.

Is very straightforward to use and customer support is available