Extech EC500 Waterproof ExStik II pH/Conductivity Meter [並行輸入品]

商品説明

Designed and built for a wide range of applications including process and HVAC cooling towers, industrial and commercial boilers, reverse osmosis systems, pools and spas. The ExStik? II pH/conductivity meter combines a rugged flat surface pH electrode with an autoranging highly accurate conductivity cell to precisely measure conductivity, TDS, salinity, pH, and temperature. It delivers seven selectable units of measure: pH, ??S, mS, ppm, ppt, mg/L, and g/L. It also provides automatic temperature compensation, adjustable conductivity to TDS ratio (0.4 to 1.0), and a 0.5 salinity ratio. The unit features an analog bar graph that indicates trends, internal memory that stores up to 25 data sets, a renew feature that alerts you when the electrode needs replacement, auto power off, and a low battery indicator. It comes complete with protective sensor cap, sample cup with cap, four batteries,