Type A/F Encoder,
both basic and standalone, are low-torque incremental optical encoders for water level or shaft position. They provide an input for the Type A/F and GS-93 Loggers or Multi-Logger and AxSys MPU with a digital input board. Note: Type A/F Standalone enclo-sure is similar to the PG III Standalone.

Position Analog Transmitter (PAT)
is a standalone water level or shaft position transmitter, with a 4 to 20 mA output. A precision potentiometer is the measuring element, and a number of ranges are available, depending on gear selec-tion. This transmitter can be used with the 420 Level Logger or the MultiLogger or AxSys MPU with an analog input board. Note: Enclosure is similar to the PG III Standalone.

The Temperature Transmitter
has a 4 to 20 mA output, suitable for the 420 Level Logger or the MultiLogger or AxSys MPU with analog input board.

PCMCIA Card Reader
is a solid state unit designed to work together with the user's PC compatible computer for transfer of data from Stevens DC64 and FC256 Data Cards. These cards are used with various Stevens data loggers, including the Type A/F, 420 Level, Pulse and Multi-Logger (DC64 Data Card) and the GS-93, GS-98, and AxSys systems (FC256 Data Card). All data storage formats are supported for each of the two types of data cards, allowing the user to have a mix of field loggers and applications, and perform all data transfers with one single unit. Firmware within the reader automatically recognizes which type of card is inserted and performs the appropriate data interface functions.