Eutech instruments, holland, manufactures economy class of cyberscan conductivity hand-held meters. These include the cyberscan con 10 which measures conductivity/°c and the cyberscan con 20 which measures both conductivity/°c and tds/°c. The meters have the following features: auto-ranging capability eliminates guesswork; up to 4-point calibration guarantees full-range accuracy; hold function freezes value for later review; the meter powers off automatically 20 minutes after last key selection; and, large lcd displays primary and secondary values simultaneously.