Amazon has 30′ Bosch GLL25-10 Beam Self-Leveling Cross-Line Laser Level on sale for $39. Shipping is free.
Features:
- Cross-line mode – projects two very bright lines that are precisely level and plumb, for a wide array of level and alignment applications
- Bright accurate lines – projects highly visible laser lines up to 30 ft. With an accuracy of 5/16 in. At 30 ft. Distance
- Mm 2 flexible mounting device – clamps to multiple surfaces and provides a rotating 360° Neck for quick setup and simple fine-tuning
- Smart pendulum system – self-levels and indicates out-of-level condition
- Secure transport – pendulum locks when switched off, to help ensure long tool life
- Laser Class: Class II 635 Nm, < 1mw