portable Laser Distance Meter Laser Rangefinder high- Digital laser tape range finder measure tool digital ruler roulette tools measure tape laser measurement mode tape measurement mode digital display measurement mode Variety of measurement modes to meet the needs of long and short distance measurement When the tape measure is pulled out, the measurement result be quickly displayed on the screen in the digital display measurement mode DT20 Bluetooth version built-in Bluetooth module, which can be connected to the APP to transmit measurement data, making work more efficient Automatic laser off: of inactivity Automatic backlight off: 10 seconds of inactivity Battery type: Lithium Storage temperature: -10C to 60C Operating temperature: 0C to 40C USB port: Micro-USB Tape measure specifications Length: 5m Front tape accuracy: 1.5mm, level 2 Digital display accuracy: 2mm Tape width: 19mm Horizontal straightness: 1.8m Color: As Shown Material: ABS Package Contents: 1 * digital laser tape measure 1 * USB charging cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.