Vaisala GMP 252 CO~2~ probe
Fits inside a 1 inch Schedule 40 PVC pipe, but in order to fint a membrane the thinner-walled 1 inch class 200 will be preferable.
* Tyvek 1443R - light (1.25oz/yd), thin (5.3mil), strong, water resistant, pretty easy to work with. * Gore-Tex socks - source?
Sensors can output data in several configurations, both analog (voltage and current) and digital (Modbus).
Single ended voltage measurement
With probes configured for analog output at 0-5V, a single ended or differential voltage measurement can be used to measure the probe. In Campbell dataloggers the relevant commands are SeVolt
Temperature, pressure, and other compensations
Temperature compensation can be performed by