Distance Meter Laser Ultrasonic à¤Ã×èͧÇÑ´ÃÐÂÐ à¤Ã×èͧÁ×ÍÇÑ´ÃÐÂÐ àÅà«ÍÃìÇÑ´ÃÐÂÐ sensor ÇÑ´ÃÐÂÐ àÅà«ÍÃìÇÑ´ÃÐÂÐ ÇÑ´ÃÐÂÐàÅà«ÍÃì ÇÑ´ÃÐÂзҧ ¡ÅéͧÇÑ´ÃÐÂÐ ÅéÍÇÑ´ÃÐÂÐ à·»ÇÑ´ÃÐÂÐ > Distance Meter à¤Ã×èèͧÇÑ´ÃÐÂÐ Distance Meter Distance Meter à¤Ã×èèͧÇÑ´ÃÐÂÐ à¤Ã×èͧÇÑ´¾×é¹·Õè à¤Ã×èͧ¤Ó¹Ç¹»ÃÔÁҵà AR851 ªèǧÇÑ´ 0.5 ¶Ö§ 60 àÁµÃ à¤Ã×èͧÇÑ´ÃÐÂзҧ ÁÔàµÍÃìÇÑ´ÃÐÂзҧ à¤Ã×èͧÁ×ÍÇÑ´ÃÐÂÐ Features: Measures in English /metric Start point selection Visible Laser sighting Data store/recall Computes areas and volumes 5 groups of value in memory Sum of lengths Auto/manual shut-off LCD backlit display Key sound, beeps for wrong reading finding and reading confirmation Specification: Measuring range: 1.6 - 49.2', 0.5m ~ 15m(Single Unit) 3.3 - 196.8', 1 ~ 60M(Double Units) Settings: SET: Switch measures from front or rear of unit M/Ft Switch measures in metric/english (inside the battery compartment) Accuracy: +/- 1.5% of reading Response time: 2 sec Power supply: 9V battery Current consumption: Stand-by current:<= 30 u A Operating current: 8 ~ 45 m A Operation environment: Temperature: 0 ~ 40ºC Humidity: 45% ~ 90% Store temperature: -10 ~ 60° C Dimension: 5.9 x 2.95 x 1.7" (150 x 75 x 44mm) Weight: 7.4 oz, (210g) (battery not included) Auto shut-off: 120 sec (approx) LCD backlight: active in 7 sec (approx) LCD size: 2.2 x 1.1" (56 x 28.3mm) Working Frequency: 40khz Distance Meter Laser Ultrasonic à¤Ã×èͧÇÑ´ÃÐÂÐ à¤Ã×èͧÁ×ÍÇÑ´ÃÐÂÐ àÅà«ÍÃìÇÑ´ÃÐÂÐ sensor ÇÑ´ÃÐÂÐ àÅà«ÍÃìÇÑ´ÃÐÂÐ ÇÑ´ÃÐÂÐàÅà«ÍÃì ÇÑ´ÃÐÂзҧ ¡ÅéͧÇÑ´ÃÐÂÐ ÅéÍÇÑ´ÃÐÂÐ à·»ÇÑ´ÃÐÂÐ > Distance Meter à¤Ã×èèͧÇÑ´ÃÐÂÐ Distance Meter Distance Meter à¤Ã×èèͧÇÑ´ÃÐÂÐ à¤Ã×èͧÇÑ´¾×é¹·Õè à¤Ã×èͧ¤Ó¹Ç¹»ÃÔÁҵà AR851 ªèǧÇÑ´ 0.5 ¶Ö§ 60 àÁµÃ à¤Ã×èͧÇÑ´ÃÐÂзҧ ÁÔàµÍÃìÇÑ´ÃÐÂзҧ