Tri-plane line laser level to simultaneously project clear 1x horizontal and 2x vertical laser light planes. Also performs the functions of a cross line laser level. Compact Multi Line Laser for all indoor applications. Simply Connected for contactless controlling without touching and without losing precision, more functionality. Very precise CAL Guard monitoring and remote-control use with Bluetooth-connected smartphone app. One horizontal and 2 vertical 360 lines enable many new applications for simultaneous marking, alignment and levelling indoors. Dual Power Source can be operated both with 12V LI-ion battery or with standard alkaline batteries. High visibility of the laser lines with a working range of 30m without a receiver. Self-levelling (4 in