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	 The Laser Model incorporates a comprehensive leveling control system that continuously adjusts the position of the tool to the desired grade — automatically!
      The core components are a tractor-mounted control panel, a five-light target, and a proportional valve which controls the flow of hydraulic fluid.
      The Laser Model comes complete with everything shown and includes level laser sending unit with tripod. 
	
   	Click  Overview to see a detailed description of the standard features of every 4-N-1 tool. 
	Below is a chart of specifications of the three basic styles of 4-N-1 for comparison:  
	 
	 
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