Revolve 900
Horizontal and vertical applications
New receiver
Powered by D cell batteries

Revolve 2000
2000ft range
1/16th inch accuracy
Manual dual dial in slope
Carrying case included - tripod, grade rod, etc

Revolve 4000
4000 ft of range
IP68 dust
Dual Dial in slope
Powered by CORE18 OR D cell batteries (with D Cell adapter-comes with the tool)
UCAL- User calibrated system with app
Front and rear screen on receiver