$113.00
SE
SMART SENSOR AR8011 Written test conductivity /TDS
0ppm~1999ppm / 0ppt~19.99ppt
Conductivity Measurement range 0uS~ 199uS/2.00uS~ 19.99uS, TDS Measurement range 0ppm~ 1999ppm/0ppt~ 19.99ppt, Conductivity Detector /TDS Measurement accuracy +/- 3%, Repeatability +/- 1% uS/0.01ms, automatic temperature compensation.

$164.00
SE
SMART SENSOR AR8401 split pH meter /ORP Detector
pH, ORP, temperature0.00~14.00pH
The pH meter and ORP Detector are two-in-one to simultaneously monitor the acid and alkaline of water, oxidation and reduction reactivity, PH accuracy +/- 0.02pH, ORP accuracy +/- 0.2mV.

If you don't know how to choose "STIP-scan", please consult customer service.