100FT. Laser Measuring Tool" to "HAMMERHEAD HLMT100 100ft Laser Distance Measure with Large LCD screen Ultra-thin design, fits easily in any pocket Accurate measurements up to 100 Ft. (within 1/8 in.) 3 operating modes: length, area and continuous measure 2 units of measure: ft./in. and metric Integrated 4V lithium rechargeable battery, charged via USB port Class II laser product, Output 1mW