Features functions such as area, distance, pythagoras and volume calculation with intuitive controls and illuminated display. Memory function stores last 10 measurements taken. Working Range: 0-40m Accurate to ± 1.5mm Calculates Distance, Area & Pythagoras Function Laser Class 2 Not Smart or Bluetooth Compatible IP54: Indoor Use Auto Power Off in 3 Minutes Compact Pocket Size Illuminated 3-Line Display Robust Shock-Proof Housing Working Range: 0-40m Accurate to ± 1.5mm Calculates Distance, Area & Pythagoras Function Laser Class 2 Not Smart or Bluetooth Compatible IP54: Indoor Use Auto Power Off in 3 Minutes Compact Pocket Size Illuminated 3-Line Display Robust Shock-Proof Housing