à¤Ã×èͧÇÑ´¤ÇÒÁàÃçÇÃͺ (Digital Tachometer) ÃØè¹ DT 2236C 100% Brand new and high quality 5 digits 18mm (0.6") LCD Accuracy: ±(0.05%+1 digit) Sampling Time: 0.8sec(over 60RPM) Range Select: Auto-Ranging Test Base: Quartz crystal Operation TEM: 0 to 50°C Detecting Distance: 50 to 500mm (Laser) 50 to 250mm (LED) Measuring Range: Photo Tach: 2.5 to 99,999RPM Contact Tach: 0.5 to 19,999RPM Surface Speed: 0.05 to 1,999.9(m/min) Resolution: Photo Tach: 0.1RPM(2.5 to 999.99RPM) 　　　　　　1RPM(over 1,000RPM) Contact Tach: 0.1RPM(0.5~999.99RPM) 　　　　　　　1RPM(over 10,000RPM) Surface Speed: 0.01m/min(0.05 to 99.99m/min) 　　　　　　　 0.1m/min(over 100m/min) Battery: 4x1.5V AAA battery Power Consumption: Approx 35mA(Laser) Approx 45mA(LED) Color: black Length: 21.00cm Width: 7.50cm Height: 3.50cm ¢ÍãºàʹÍÃÒ¤ÒËÃ×ÍÊͺ¶ÒÁ¢éÍÁÙÅà¾ÔèÁàµÔÁ 0922530999 , 0848744848ËÃ×Í email ( t_phuttharat@hotmail.com ) www.pballtechno.com ªÓÃФèÒÊÔ¹¤éÒâ´Â¡ÒÃâ͹à§Ô¹ â´Â¨Ð·Ó¡ÒÃÊè§ÊÔ¹¤éÒã¹Çѹ¶Ñ´ä»â´ÂºÃÔ¡Òà EMS áÅШÐÊè§ Tracking NO. ãËé·Ò§ EMS ÃÍÃѺÊÔ¹¤éÒÀÒÂã¹ 2-3 ÇѹËÅѧ¡ÒèѴÊè§ »Å. ¡Ã³ÕäÁèÁÕÊÔ¹¤éÒã¹ÊµçÍ¡ÍÒ¨µéͧãªéàÇÅÒ㹡ÒÃÊÑ觫×éÍ»ÃÐÁÒ³ 45 Çѹ·Ó¡Òà ·´ÅͧãªéÊÔ¹¤éÒáÅÐÊÔ¹¤éÒäÁèµÃ§¡ÑºÃÒÂÅÐàÍÕ´äÇé ËÃ×Í äÁè¾Íã¨ã¹µÑÇÊÔ¹¤éÒ àÃÒÂÔ¹´Õ¤×¹à§Ô¹ 100% (ÀÒÂã¹ 7 Çѹ)