à¤Ã×èͧÇÑ´¡Ã´´èÒ§ PH900: Waterproof pH/mV/Temperature Kit à¤Ã×èͧÇÑ´¡Ã´´èÒ§ ¾Õàͪ ÁÔàµÍÃì PH900: Waterproof pH/mV/Temperature Kit 3-in-1 Meter with Lab-Quality Performance à¤Ã×èͧÇÑ´¡Ã´´èÒ§ ORP Measures pH, mV, and Temperature at your workbench or in the field PH900: Waterproof pH/mV/Temperature Kit 3-in-1 Meter with Lab-Quality Performance Features: Measures pH, mV, and Temperature at your workbench or in the field Automatic calibration (4, 7, and 10pH) Choice of 3 point calibration for better accuracy Automatic Temperature Compensation Memory stores up to 200 readings with series number, measured value and temperature Large blue backlit dual LCD display Auto power off saves battery life with disable function Waterproof housing Complete with pH/mV/Temperature electrode, protective rubber holster, pH calibration solutions, 2 AA batteries and hard carrying case