Bosch Professional 12 V System Laser Level GCL 2-50 C (without battery and charger, red laser for indoor use, with application function, stand, clamp, visible range: up to 20 m, L-Boxxx) :
Amazon.com: BOSCH Self-Leveling Cross-Line Laser Kit GLL 2-50 (Discontinued by Manufacturer) : Tools & Home Improvement