Upgrade) Laser Detector for Line Laser Level, Huepar LR-5RG Digital Laser Receiver Used with Pulsing Line Lasers Up to 50m, Detect Red and Green Laser Beams, Two-Sided LED Displays, Clamp Included :
Topcon RL-H5A Self Leveling Horizontal Rotary Laser with Bonus EDEN Field Book, IP66 Rating Drop, Dust, Water Resistant, 800m Construction Laser, Includes LS-80L Receiver, Detector Holder, Soft Case - Amazon.com