This is the Delta: a modular machine control solution with WiFi and Bluetooth connectivity that can measure elevation changes down to an inch and reports orientation to 0.1-degree. You simply have to connect it to your iPhone or Android device and choose an activity. You can choose site leveling, digging, drilling, road grading, and elevation surveying.
This sensor samples data 100s of times per second and makes everything available on your smartphone. Delta can create a mesh network between your devices. Each unit covers a 1000ft diameter. Delta has a 3D printed, UV/impact resistant design. It has a magnetic base. You can find it on Kickstarter at this time.
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