Laser receiver that can detect red laser beams within a 50m range. Used for alignment of the laser beam plane. Visual and audible signals indicate when beam is located in a variety of lighting conditions. Easily attaches to a staff. Compatible with Bosch Line Lasers with Pulse Function Detects Lasers up to 50m Accurate to 3mm @ 50m Detects Red Lasers Suitable for Indoor & Outdoor Use Selectable Accuracy (1mm / 3mm) Compatible with Bosch Line Lasers with Pulse Function Detects Lasers up to 50m Accurate to 3mm @ 50m Detects Red Lasers Suitable for Indoor & Outdoor Use Selectable Accuracy (1mm / 3mm)