The AM16/32B switching multiplexer allows Campbell dataloggers to measure more sensors. The number of analog inputs is increased by sequentially multiplexing sensor leads into "common" leads.
The individual common leads are connected to datalogger analog inputs, excitation channels, or ground as required by the sensor. The datalogger controls the multiplexer using two control ports or one control port and one excitation channel. Compatible dataloggers include the CR1000(X), CR300-series, CR800-series, CR6, CR3000, CR5000, and many of the retired Edlog datalogger (please enquire).
Multiplexes up to 32 single-ended or differential two-wire sensors at a time
Alternately, multiplexes up to 16 single-ended or differential four-wire sensors at a time