Campbell Scientific 253-L and 257-L (Watermark 200) Soil Matric Potential Sensors - Manual (Page 14)

253-L and 257-L Soil Matric Potential Sensors
2. Select the datalogger and enter the scan interval, and select Next.
A scan rate of 30 seconds or longer is recommended when using
a multiplexer. NOTE
3. Select 107 Temperature Probe and select the right arrow (in center of
screen) to add it to the list of sensors to be measured.
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