Upgrade of the Long Range Bluetooth transmission up to 3,000 feet from a GeoMax Zoom90 robotic total station with the addition of an external antenna on a Champion HC1 handheld data collector. This upgrade requires the Champion HC1 to be modified internally in our office. Short range Bluetooth will still operate with the internal antenna, but the long range Bluetooth will require the external antenna after the upgrade. Note that the 3,000 ft. range exceeds the tracking distance of a 360 degree prism.
Scepter Data Collector Stylus
Dunham & Morrow DML2000-XR Features
In side-by-side comparison tests with other magnetic locators, the DML2000-XR outperformed all the competition. The state-of-the-art, DML2000-XR Magnetic Locator packs all of its sophisticated electronics in an incredibly light 1.6 lb package. Experienced MAG users will appreciate the LOW battery indicator; no more wondering if the batteries are low and you're missing targets. The separate Power, Volume and Sensitivity controls are also an improvement over other brands.
The DML2000-XR is designed for use in the most demanding environments at temperature ranging from -20 F to +120 F with no degradation in performance. The instrument can be used in the heaviest of rain showers, while the sensors can be submersed in water up to 3 feet deep!
Using the DML2000-XR is the fastest, and easiest way to pinpoint buried survey markers, septic tanks, iron water and gas pipes, water valves, water meters and any other ferrous object buried under dirt, asphalt, water, snow or ice.