TU7685S
TU7685S is a microprocessor-based digital meter. The meter is equipped with two ON/OFF outputs and a separate alarm output. The instrument also has an analog (0/4-20 mA) output for connection to e.g. printers. The separate measuring probe, which is of the immersion type, is connected to the instrument. With automatic flushing relay with hold function.
Here you can download the product sheet for the 7685S sludge content meter

