Bosch Self-Leveling 5-Point Alignment Laser GCL 25 FUNCTIONALITY: The GCL 25 is ideal for multipurpose functions with five highly visible laser points plus a cross-line for a two-in-one laser. Also includes a combination horizontal and vertical level, square, plumb transfer and layout applications USER FRIENDLY: The easy-to-use one-button operation makes this laser tool ideal for daily use. Manual mode locks laser lines in place for use at any angle SECURE: The Bosch GCL 25 features Smart Pendulum System which self levels and indicates out-of-level condition. It also locks when switched off for protection during transport VERSATILITY: Offers four selectable modes so you can easily toggle through 5-point, horizontal line, vertical line or cross-line modes EASY SETUP: Includes a BM1 Positioning Device to provide microfine height adjustments so you can securely lock the desired measuring height. The GCL 25 also has retractable feet for use as a mini tripod Class IIa laser product, &lt;1mW power output