This Bosch digital laser measure is a handy tool, offering quick and accurate measurements. Its range of up to 25 metres and +/-2 mm accuracy means you can rely on it for all your projects. It even saves the last ten measurements in memory, so you don’t lose track of your numbers.Good to know- It uses a 635 nm laser diode for safe and accurate measuring- Measurements are quick and reliable, taking between 0.5 to 4 seconds- It automatically switches off after five minutes to save battery life- Two AAA batteries are included, so you can use it immediately