All digital RS485 water quality sensor can be used！ 7 Parameters in 1 Meter

with pH meter PHG-2091Pro,we will simulate the device of automatically adding acid and alkali. Let's take the example of adding acid,use this bulb to simulate a dosing pum. The light of the bulb means that the dosing pump works, off the light means that the dosing pump stops.

Calibration for DOG-2082 Pro DO meter with PPB DO sensor

MS-301

GOG-2082YS

High Temperature 0-130℃

pH 8011

CODG-3000