Imex LRX6 MM Reading Digital DetectorQuality German made MM Receiver for Rotary Lasers Take the guesswork out of levelling with the MM Reading Imex Detectors. Up to 1. 0mm reading in a 60mm window. The Imex Digital Detector range increases your accuracy and efficiency. Features: 60mm detection window Red or green beam pick up 1. 0 mm up to 5. 0 mm reading increments Heavy duty, waterproof and shockproof Made in Germany 3 Year warranty Specifications Detection Window 60mm +30 to 30 Range