Mini removal with multi-function function, knife initiator, surface measurement, distance, volume, Pythagoras measurement, addition and subtraction.Portable rangefinder. Measure each distance from 1 mm to 40/60/80/100 meters quickly and with a high accuracy of 1.5 mm.Save and Browse function, the measurement result can be automatically saved on the memory stick and you can read the saved date or delete all history data.Comes with a portable bag and carry strap, so you can easily carry it anywhere or store it for next use.Self-calibration function with an adjustment range from -9 to 9 mm, which will maintain the precision of the device.Specifications:Distance (m): 40 m, 60 m, 80 m, 100 m / 196 feet, 196 feet, 262 feet, 328 feet.Accuracy: 1.5 mm.Measure unit options: m / in / ft635 nm Class II level.Continuous measurement: yes.Automatic calibration: yes.Data Storage 30Addition/subtraction: yesLength measurement: yes.Surface measurement: yesVolume measurement: yesAuto Off: yes.Summer display: buzzer displayAuto Power Off: yes.Operating temperature: 0 ~ 40.Relative humidity:RH85%.Power:2 x 1.5V AAAPackage weight:220g ~ 228g.Product dimensions: 112 x 50 x 25 mm.Delivery contents:1 x distance meter.1 x wristband.1 x portable bag.