SNDWAY Digital Laser rangefinder distance meter Area Volume Measure DS,H-D, and SW-50G series built-in electronic angle sensors, which can quickly measure the angle and height, making the measurement more accurate. 50G/70G/100G laser color is a green beam, more clearly visible. Specifications Model SW-MT4 SW-MS50/70/100 SW-TG50/70/ 100/120 SW-DS50/70/100/120 H-D510A/710A/100A/120A SW-50G/70G/100G Working Range 40m 50/70/100m 50/70/100/120m 50/70/100/120m 50/70/100/120m 50/70/100m Laser color Red Red Red Red Red Green Bubble level No 1 bubble 2 bubble No No No Electronic Angle sensor No No No Yes Yes Yes Accuracy (2mm + d*10^-4) 2mm 2mm 2mm 2mm 2mm Unit options meter/inch/feet meter/inch/feet meter/inch/feet meter/inch/feet meter/inch/feet meter/inch/feet Working temperature 0C~40C 0C~40C 0C~40C 0C~40C 0C~40C 0C~40C Self-Calibration Yes Yes Yes Yes Yes Yes Max storage 99 units 99 units 30 units 30 units 99units 99 units Battery 2x1.5V AAA(not included) 2x1.5V AAA(not included) 2x1.5V AAA(not included) 2x1.5V AAA(not included) 3.7V 850mAh lithium 3x1.5V AAA(not included) Product dimension 104*48*25mm 112x50x25mm 112x50x25mm 112x50x25mm 112x50x25mm 118x52x27mm 1*Laser meter 1*User's manual 1*Laser meter1*pouch 1*Hand strap1*User's manual 1*Laser meter1*Portable bag1*Hand strap1*User's manual1* box1*Reflective plate 1*Laser meter1*Portable bag1*Hand strap1*User's manual1* box1*Reflective plate 1*Laser meter 1*Portable bag 1*Hand strap 1*User's manual 1* box 1*Reflective plate 1*Laser meter1*Portable bag1*Hand strap1*User's manual1* box1*Reflective plate Picture for SW-MT4 Picture for SW-MS50/70/100 Picture forSW-TG80/70/100/120 Picture forSW-DS50/70/100/120 Picture forH-D510A/710A/100A/120A Picture for SW-50G/70G/100G