These professional Laser Distance Meters are designed to give special users a high accuracy, one person distance measuring and estimating tool to measure remote and difficult reaching places. The compact and handy base model was specifically designed for indoor applications. Shortcut keys for addition, subtraction, Pythagoras, area and volume calculation make measuring fast and very reliable. The last 20 measurements are also stored.

Area, Volume Calculations**
Indirect measurement using Pythagoras**
Continuous Measurement**
Min/Max Distance Tracking**
Display illumination and multi-line display.**
Buzzer indication**
Multifunctional end pieces**
Angle measurement using Tilt sensor*
Keypad illumination*
Tripod thread*

Measuring Range0.05 to 50m(0.15ft to 164ft)0.05 to 100m(0.15ft to 328ft)
Measuring accuracy(2?)Typically: ±1.5 mm(± 0.06 in)Typically: ±1.5 mm(± 0.06 in)
Smallest unit displayed1mm1mm
Measuring unitsm,in,ftm,in,ft
Measuring unitsClass II 635nm,<1mWClass II 635nm,<1mW
Measuring unitsIP 54IP 54
History measurement records2020
Keyboard TypeSoft-Touch KeypadSoft-Touch Keypad
Operating Temperature0°C to 40°C(32°F to 104°F)0°C to 40°C(32°F to 104°F)
Operating Temperature-10°C to 60°C(14°F to 140°F)-10°C to 60°C(14°F to 140°F)
Battery LifeUp to 4,000 measurementsUp to 5,000 measurements
BatteriesType AAA 2 x 1.5VType AAA 2 x 1.5V
Auto. laser switch-offafter 0.5 minafter 0.5 min
Auto instrument switch-offafter 3 minafter 3 min
Angle measurement range±45°
Tilt sensor accuracy±0.5°
Size(HxWxD)115mm x 48mm x 28mm (LDM-100)
135mm x 58mm x 33mm (LDM-150)
Weight135g (LDM-100), 203g (LDM-150)