Bosch Laser Spirit Level PLL 1 P(Working range up to 20m, measuring accuracy +/- 0.5 mm/m, in cardboard box) : Amazon.de: DIY & Tools
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GLL 1 P | Line and Point Laser | Bosch Power Tools
Bosch laser spirit level PLL 1 P with wall mount (laser line for flexible alignment on walls and laser point for easy height transfer) : Amazon.co.uk: DIY & Tools