Check the listing for details. Benchtop Multi-Parameter Water Quality Meter with USB/SD Datalogging -. Condition: New. Listed at 1010.85 USD. USB and SD card interfaces for power and data transfer. Compact bench cradle with rotary electrode holder saves space in lab. Probe Arm Length : Approx. 16" (152 mm) fully extended. 3.5 mm jack input for electrodes makes it very easy for electrode connection.