The all-in-one MILWAUKEE® Rotary Detector 305m can detect the green laser line up to 305m (diameter) for fast alignment at a long range. The Rotary Detector 305m has a simplified menu navigation and user-friendly design. The all-in-one Rotary Detector 305m features Centre Find, for easy, fast, and automatic long-range alignment with built-in amplified rare earth magnets to provide a strong hold onto steel studs. Its durable rubber over-mold housing allows it to withstand drops up to 2m. The Rotary Detector 305m is compatible with the M18™ Interior Single Slope Rotary Laser 305m (1000') Green (M18RL305).