Spectra Precision Spectra Precision LR50W Wireless Receiver, NiMH, RD20, DM-20, Case and Charger - LR50W-DM deals it adjusts grades from -25%

it adjusts grades from -25% to +25% on both axes

The microphone features advanced filtering technology to eliminate external noise and focus on water leak sounds

Induction Motor: Minimizes noise for a quieter operation in work environments

Features: Easily attaches to prism poles

Spectra Precision Spectra Precision LR50W Wireless Receiver, NiMH, RD20, DM-20, Case and Charger - LR50W-DM deals it adjusts grades from -25%Spectra Precision Spectra Precision LR50W Wireless Receiver, NiMH, RD20, DM 20, Case and Charger Model Number: LR50W DM Features: The Spectra Precision LR50 Display Receivers are rugged and waterproof laser machine display receivers that feature versatile 360 degree reception with multiple accuracy choices, and an out of laser beam indicator.> Built in blade tilt indicator helps the operator keep the blade level for increased accuracy and productivity