Fast & Accurate
Measure up to 165ft with ±2mm precision—ideal for room layouts, furniture spacing, and renovations.

Multiple Modes
Supports single/continuous measuring, area, volume, and triangle (Pythagorean) functions.

Easy to Read
Large backlit display with auto-off and simple buttons for quick, one-hand operation.

Smart Memory
Stores up to 99 measurements with self-calibration for reliable results every time.

Portable & Ready
Compact, lightweight, and includes batteries, strap, and guide—perfect for home use.

ITEM	LDM-50D	LDM-50S
Working Range	0.05-50m	0.05-50m
Precision	±(2mm+d*1/10000)*	±(2mm+d*1/10000)*
Continuous Measurement	√	√
Area/Volume Measurement	√	√
Pythagorean Measurement	√	√
Add and Subtract Measurement	√	√
Area &Volume Addition/Subtraction	√	√
Min/Max Value	√	√
Self-Calibration	√	√
Voice Prompt	√	√
Laser Level	II	II
Laser Type	630-670nm, <1mW	630-670nm, <1mW
Max Storage	99 units	99 units
Automatically Cut off Laser	20s (single measurement)	20s (single measurement)
Auto Power-off	150s	150s
Battery Life	8000 times for single measurement	8000 times for single measurement
Storage Temperature	-20˚C~60˚C	-20˚C~60˚C
Working Temperature	0˚C~40˚C	0˚C~40˚C
Storage Humidity	20%~80% RH	20%~80%RH
Battery	2x1.5V AAA	2x1.5V AAA
Dimension	112x50x25mm	108x50x25mm