Bosch Laser Distance Meter
Product Details:

Model Name/Number	GLM40
Brand	Bosch
Weight	0.1 Kg
Measurement range	0.15 - 40.00 m
Laser diode	635 nm, < 1 mW
Measurement time, typical	< 0.5 s
Measurement accuracy, typical	+- 2.0 mm (plus use-dependent deviation)
Measurement time, max.	4 s
Power supply	2 x 1.5 V LR03 (AAA)
Automatic deactivation	5 min
Laser colour	Red
Measuring range, up to	40 m

Advantages
Compact - Easy to carry and fits into any pocket for handy usage
Robust - IP54 dust and splash water protection suitable for every jobsite
Easy - Simple and easy interface for various measuring functions