2,000 us/20 ms, seperate probe conductivity meter
model : pcd-432
* 2 ranges : 2,000 us, 20 ms.
* temperature measurement, oc/of.
* automatic temperature compensation.
* separate probe, easy for remorting operation.
* carbon rode electrode, high reliability.
* data hold, record ( max., min. ).
* external calibration buttons.
* dc 1.5v battery ( um-4, aaa ) x 4.

dissolved oxygen meter, all in 1