Stanley TLM40 Laser Distance MeasureStanley TLM40 Laser Distance Measure The Stanley TLM40 Laser Distance Measure has a lightweight, compact design and easily fits in a pocket. It features one button operation for point and click measurement function. Its black screen with white letters provides better visibility in brighter conditions. The Distance Measure runs on an internal Li ion battery for a longer run time and no need to change batteries. USB charging is available. Accuracy: 6.