Chapter 9. Features and Specifications164 Model PM880 Portable Hygrometer User’s Manual9.1 The PM880 Hygrometer (cont.)The top of the PM880 (shown in Figure 75) includes an input forconnecting moisture probes. An internal infrared transceiver enablescommunication between the meter and other IR devices, particularly the IRports or IR to RS232 adapters of Windows® -based PCs or printers. Userscan send and receive site and log data; they can also program the meterusing the optional PanaView software interface. The PM880 was designedfor use with products that comply to the IrDA protocol.Figure 75: Probe Connection and Infrared Transceiver9.2 ProbesProbes are the part of the system that come into contact with the processflow. The PM880 uses various types of probes to make moisture,temperature, and pressure measurements.Note: Only GE standard probes can be used with the PM880.• Moisture (M) Series - moisture and temperature.• Three Function (TF) Series - moisture, temperature, and pressure.• Moisture Image Series (MIS) - moisture, temperature, and pressure.Probe Cable InputInfraredTransceiver