©2011 Johnson Level & Tool
3
2. Features and Functions
• 2” or 5” angular accuracy - accurate enough for any construction job
• Vertical axis compensation - tilt sensor provides the highest level
of accuracy and can be turned on or off depending on job
requirements
• Dual LCD with large characters - easy to see angle readings
eliminate errors and reduces eye fatigue
• Backlit LCD screen and telescope reticle - allows work in low light
conditions including indoors and extended hours near dawn
and dusk
• Simple six button keypad - quick setups and simple operation with
low operator learning curve
• Large suite of programmable settings - provide multiple options for
various users and job requirements including zero position of
vertical angle
• Measurement units in degrees, gon, or mils
• 90 degree angle audible notification - for quick turning and set out
of right angles
• Instant conversion of vertical angles to percent of grade -
convenient for slope work
• Ni-MH rechargeable battery pack and charger - lower operating cost
with reusable batteries
• Alkaline battery pack standard - provides backup and eliminates
downtime if the charge is lost in the middle of a job
• Battery status indicator - no power surprises and allows for better
planning
• Automatic shutoff - conserves battery life when not in use - can be
disabled if desired
4430H-English_Manuals 2/22/11 11:08 AM Page 3