The HD2105.1 and HD2105.2 are portable instruments with a large LCD display. They measure the pH and the redox potential (ORP) in mV. They measure the temperature using Pt100 or Pt1000 immersion, penetration or contact probes. The electrode calibration can be carried out on one, two or three points and the calibration sequence can be chosen from a list of 13 buffers. The temperature probes are fi tted with an automatic detection module, with the factory calibration settings already being memorized inside. The HD2105.1 and HD2105.2 models are fi tted with an RS232C serial port and can transfer the acquired measurements in real time to a PC or to a portable printer.
