Various inputs: PH Industrial multifunctional data logger Transmitter data logger S210 series ... data logger for analysis anytime. Features: l Various inputs: PH ,CO2,etc.l Patented structure technology, easy to install battery ... 2s to 24 hours according to requirementsDimension125mm*28mm*22mmLCD size18mm*13.5mmNet weight62gAccessoriesSoftware CD, inspection certificate, warranty card, operation manual ...