The 414D 
Features:

• Simple one-button operation to instantly measure distance between two objects
• Measures up to 50 m (165 ft) with accuracy of 2 mm (0.08 in)
• Bright laser for easy targeting even at longer distances
• Quick calculation of area (square feet/meters) and volume
• Easy addition and subtraction function
• Pythagoras function indirectly measures height via two other measurements
• Stores up to five measurement results
• Battery life of 3000 measurements with automatic shut-off feature
• Two-line display with display hold (until next button is pressed)
• Carrying pouch secures to your tool belt
• Powered by two AAA batteries