Combination laser with maximum efficiency thanks to intelligent features. Bluetooth connection combined with the Levelling Remote app for positioning the tool remotely via a smartphone. More flexibility through dual power source operation with a 12V Li-Ion battery or standard alkaline batteries. Precise alignment of the laser lines around centered plumb points using the manually operated RM 2 or the motor-driven RM 3. Alignment via smartphone app is possible. Suitable for horizontal and vertical alignment. Long range of nearly 360°. The GCL 2-50 C Professional combination laser offers numerous intelligent features for maximum efficiency. With a Bluetooth connection, the tool can be aligned remotely via a smartphone app, while the dual power source technology allows operation with both a 12V Li-Ion battery and standard alkaline batteries. For precise positioning around the centered plumb points, the optional RM 3 Professional provides motor-driven control, while manual adjustments can be made with the RM 2 Professional. The device is designed for horizontal and vertical alignment with a long range of nearly 360° and is suitable for projects such as drywall and interior construction work. The horizontal and vertical laser lines and the two centered plumb points of the GCL 2-50 C Professional provide optimal visibility up to 20 meters without a receiver and up to 50 meters with a receiver.