... measure the distance accurately 2 ranging from 70 meters 3 one year warranty 4.CE&FDA New ... 2, In good measure conditions(good for measuring surface,room temperature) to 10m. Without good measurement conditions, such ... surface of a measured object reflecting weaker or temperature difference is too large, more than 70m error ... Big order has bigger discount. 0-70 meters portable laser rangefinder TD-LR-02