â·ÃÊͺ¶ÒÁÃÒ¤Ò à¤Ã×èͧÇÑ´¡Ã´´èÒ§ Water Quality Meter à¤Ã×èͧÇÑ´¡Ã´´èÒ§ pH Meter à¤Ã×èͧÇÑ´¡Ã´´èÒ§ à¤Ã×èͧÇÑ´¤èÒ¾Õ-àͪ à¤ÃÕèͧÇÑ´¡Ã´´èÒ§ à¤Ã×èͧÇÑ´¤Ø³ÀÒ¾¹éÓ à¤Ã×èÍÇÑ´¤ÇÒÁà»ç¹¡Ã´ ´èÒ§ PH meter > à¤ÃÕèͧÇÑ´¡Ã´´èÒ§ ẺµÑé§âµêÐ BENCH-TOP PH / MV METER 860031 à¤ÃÕèͧÇÑ´¡Ã´´èÒ§ ẺµÑé§âµêÐ BENCH-TOP PH / MV METER 860031 à¤Ã×èͧÇÑ´¡Ã´´èÒ§ BENCH-TOP PH / MV METER 860031 Rugged housing with large LCD displaying the parameter being measured together with time, date and temperature (in ºC or ºF). Features: Automatic or manual temperature compensation Automatic or manual ranging Automatic buffer recognition Digital and analog outputs Min/Max and 99 data points Data Hold 5 calibration points Electrode status indication Operates on AC voltage (no batteries). Comes ready to use with ATC pH electrode, electrode holder arm, AC adaptor, computer cable & software. Also accepts any pH or ORP probe with a standard BNC connector. Weight: 18oz (533g). Dimensions: 8½” x 6½” x 2¼” (217 x 168 x 58mm) Specifications Range Resolution Accuracy pH 0~14 0.01 ±0.02 MV / ORP -1999~+1999 0.1mv -199.9~+199.9 otherwise 1mv ±0.2mv -199.9~+199.9 otherwise ±2mv Temperature ºF 23~176 0.1 ±0.9 ºF Temperature ºC -5~80 0.1 ±0.5 ºC 860031 pH Meter Sper Scientfic Water Quality Meter à¤Ã×èͧÇÑ´¡Ã´´èÒ§ à¤Ã×èͧÇÑ´¤Ø³ÀÒ¾¹éÓ à¤Ã×èͧÇÑ´¤èÒ pH à¤Ã×èͧÇÑ´¤èÒ ¾Õàͪ ẺµÑé§âµêÐ