This Bosch Laser Rangefinder measures distances in seconds, plus it has a memory function which holds the last two measurements. Simply point the laser and the large clear user-friendly display will then give you the reading. What could be simpler? This gadget will measure distances up to 15m. It is compact in size and easy to carry in your pocket. Precise with a laser diode: 635nm and laser class: 2 accuracy: ± 3.0 mm. 2 year warranty.