â·ÃÊͺ¶ÒÁÃÒ¤Ò Conductivity à¤Ã×èͧÇÑ´¡Ã´´èÒ§ pH Meter EC Meter Conductivity Meter à¤Ã×èͧÇÑ´¤ÇÒÁ¹Óä¿¿éÒ à¤Ã×èͧÇÑ´¡Ã´´èÒ§ Water Quality Meter à¤Ã×èͧÇÑ´¤èÒ¾Õ-àͪ PH meter > à¤Ã×èͧÇÑ´¡Ã´´èÒ§ ¾Õàͪ ÁÔàµÍÃì Water Quality Bench Top Meter - 860033 à¤Ã×èͧÇÑ´¡Ã´´èÒ§ à¤Ã×èͧÇÑ´¤ÇÒÁ¹Óä¿¿éÒ Water Quality Bench Top Meter - 860033 à¤ÃÕèͧÇÑ´¡Ã´´èÒ§ PH meter > Water Quality Bench Top Meter - 860033 ÇÑ´¤èÒ pH / Conductivity Reliable Water Quality Testing The Water Quality Bench Top Meter from Sper Scientific measure all of the following parameters: · pH · ORP (oxygen reduction potential - SOLD SEPARATELY) · mV · Conductivity · TDS (total dissolved solids) · Salinity · Temperature 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 conductivity electrode (also measures TDS & salinity), pH electrode (also measures mV), multiple electrodes holder arm, AC adaptor, computer cable & software. Also accepts any pH or ORP probe with a standard BNC connector. Dimensions: 8½” x 6½” x 2¼” (217 x 168 x 58mm). Weight: 18oz (533g) 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 Conductivity uS/cm 0 ~ 19.9 0 ~ 199.9 0 ~ 1999 0.01 0.1 1 ±1% fs + 1d Conductivity mS/cm 0 ~ 19.99 0 ~ 199.9 0.01 0.1 TDS ppm 0 ~ 19.99 0 ~ 199.9 0 ~ 1999 0.01 0.1 1 TDS ppt 0 ~ 19.99 0 ~ 199.9 0.01 0.1 Salinity ppt 0~11.38 0~80 0.01 0.1 1% fs+1digit Temperature ºF 23~176 0.1 ±0.9 ºF Temperature ºC -5~80 0.1 ±0.5 ºC 860033 Conductity EC Meter pH Meter Sper Scientfic Water Quality Meter à¤Ã×èͧÇÑ´¤ÇÒÁ¹Óä¿¿éÒ à¤Ã×èͧÇÑ´¤Ø³ÀÒ¾¹éÓ à¤Ã×èͧÇÑ´¤èÒ ¾Õàͪ à¤Ã×èͧÇÑ´¤èҡô-´èÒ§ à¤Ã×èͧÇÑ´¤èÒ¾Õàͪ ẺµÑé§âµêÐ